As the world gazed for the time on the Duke and Duchess of Cambridge's royal baby on Tuesday, keen-eyed shoppers made their way to their computers, credit cards in hand, and lined up in front of cash registers to get themselves some Kate Middleton-inspired frocks.

Kate's polka-dot Jenny Packham dress (a subtle nod to Princess Diana) caused women to buy polka-dot frocks in droves, so much so that one of the UK's biggest brands sold out of the dresses within hours on Tuesday.

Story continues below the slideshow:

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  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time. (AP Photo/John Stillwell, Pool)

  • Kate Middleton And Prince William Show Newborn Son

    Kate, Duchess of Cambridge holds the Prince of Cambridge, Tuesday July 23, 2013, as they pose for photographers outside St. Mary's Hospital exclusive Lindo Wing in London where the Duchess gave birth on Monday July 22. The Royal couple are expected to head to London’s Kensington Palace from the hospital with their newly born son, the third in line to the British throne. (AP Photo/Alastair Grant)

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge, depart The Lindo Wing with their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge.  (Photo by Peter Macdiarmid/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge, depart The Lindo Wing with their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge.  (Photo by Peter Macdiarmid/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge leaves the Lindo Wing of St Mary's Hospital with his newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Catherine, the Duchess of Cambridge (L) looks on as Prince William the Duke of Cambridge holds his new-born baby boy in front of the world's media outside the Lindo Wing of St Mary's Hospital in London on July 23, 2013. The baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William.

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William and Catherine, Duchess of Cambridge show their new-born baby boy to the world's media outside the Lindo Wing of St Mary's Hospital in London on July 23, 2013. The baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William.

  • Kate Middleton And Prince William Show Newborn Son

    Prince William and Catherine, Duchess of Cambridge show their new-born baby boy to the world's media outside the Lindo Wing of St Mary's Hospital in London on July 23, 2013. The baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William.

  • Kate Middleton And Prince William Show Newborn Son

    Catherine, Duchess of Cambridge leaves the Lindo Wing of St Mary's Hospital with her newborn son on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William takes the baby from Catherine, Duchess of Cambridge as they show their new-born baby boy to the world's media outside the Lindo Wing of St Mary's Hospital in London on July 23, 2013. The baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William.

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge depart The Lindo Wing with their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Chris Jackson/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge hold their newborn son outside The Lindo Wing at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge.  (Photo by Peter Macdiarmid/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge, depart The Lindo Wing with their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Scott Heavey/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    Prince William and Catherine, Duchess of Cambridge show their new-born baby boy to the world's media outside the Lindo Wing of St Mary's Hospital in London on July 23, 2013. The baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William.

  • Kate Middleton And Prince William Show Newborn Son

    Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge, depart The Lindo Wing with their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Oli Scarff/Getty Images)

  • Kate Middleton And Prince William Show Newborn Son

    The Duke and the Duchess of Cambridge, leave The Lindo Wing of St. Mary's Hospital, in London, Tuesday, July 23, 2013, carrying their new born son, the Prince of Cambridge, who was born on Monday. into public view for the first time.

  • NEXT: The World Celebrates The Royal Baby

  • The CN Tower is lighted blue to celebrate the birth of the royal baby, on Monday July 22, 2013, in Toronto. (AP Photo/The Canadian Press, Frank Gunn)

  • Lightning strikes behind The London Eye in central London which is lighted up in the national colors of red, white and blue to mark the birth of Prince William and his wife Kate's first child Tuesday, July 23, 2013. (AP Photo/PA, Lewis Whyld) UNITED KINGDOM OUT, NO SALES, NO ARCHIVES

  • NIAGARA FALLS, NY - JULY 22: Visitors to Niagara Falls receive notice of the sex of the royal baby indicated by the blue light illuminating the falls in Niagara Falls, New York. The Royal couple,The Duke and Duchess of Cambridge, had a baby boy who was born at 16.24 BST and weighed 8 pounds, 6 ounces. The child, who is now third in line to the throne, has yet to be named. (Photo by John Normile/Getty Images)

  • A man reads a newspaper carrying front page news of the birth of a baby boy of Prince William and Kate, Duchess of Cambridge, outside Buckingham Palace in London, Tuesday, July 23, 2013. (AP Photo/Sang Tan)

  • Indian 'dabbawallahs' - lunchbox deliverymen - feed sweets to each other in Mumbai on July 23, 2013, as they celebrate the newborn son of Britain's Prince William and Catherine, Duchess of Cambridge. The world on July 23 awaited the first glimpse of the still unnamed new heir to the British throne after Prince William's wife Kate gave birth to a strapping baby boy. AFP PHOTO/ INDRANIL MUKHERJEE (Photo credit should read INDRANIL MUKHERJEE/AFP/Getty Images)

  • Indian painter, Jagjot Singh Rubal touches up his painting of the Duke and Duchess of Cambridge with their newborn baby which he plans to post to them as a gift, in Amritsar on July 23, 2013. The world awaited the first glimpse of the still unnamed new heir to the British throne after Prince William's wife Kate gave birth to a healthy boy weighing eight pounds six ounces (3.8 kilogrammes), at St Mary's Hospital in London on July 22, 2013. AFP PHOTO/NARINDER NANU (Photo credit should read NARINDER NANU/AFP/Getty Images)

  • British newspapers carrying front page news of the birth of a baby boy of Prince William and Kate, Duchess of Cambridge are seen on display for sale at a newsagent in central London, Tuesday, July 23, 2013. (AP Photo/Sang Tan)

  • LONDON, ENGLAND - JULY 23: A bookmaker shows the odds on names for Catherine, Duchess Of Cambridge's newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Peter Macdiarmid/Getty Images)

  • LONDON, ENGLAND - JULY 23: Well wishers wearing free yellow sunglass distributed by a drinks company wait for a glimps of The Duke and Duchess of Cambridge and their newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST, with William the Duke of Cambridge present for the arrival. (Photo by Peter Macdiarmid/Getty Images)

  • LONDON, ENGLAND - JULY 23: The Chelsea pensioner's stand with a teddy-bear called 'Charles' which they are sending as a present to the hospital to celebrate the birth of the royal baby at the Royal Hospital Chelsea on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8 lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Jordan Mansfield/Getty Images)

  • LONDON, ENGLAND - JULY 23: Members of the public gather outside Buckingham Palace to read the easel displaying the announcement of the birth of a son to The Duke and Duchess of Cambridge on July 23, 2013 in London, England. The Duchess of Cambridge has given birth to a baby boy yesterday at 16.24 BST. (Photo by Dan Dennison/Getty Images)

  • SANTA MONICA, CA - JULY 22: Karen Milne, (L) from Scotland, wears a mask representing Catherine, Duchess of Cambridge, as she and her friends Rachelle Rodriguez (C) and Michelle Lewis (R) celebrate the royal birth announcement at Ye Olde King's Head English Pub July 22, 2013 in Santa Monica, California. The Royal couple had a baby boy who was born at 16.24 BST and weighed 8 pounds, 6 ounces. The child, who is now third in line to the throne, has yet to be named. (Photo by Kevork Djansezian/Getty Images)

  • LONDON, ENGLAND - JULY 23: A woman wears Union flag glasses and hat as she waits for Catherine, Duchess Of Cambridge and her newborn son at St Mary's Hospital on July 23, 2013 in London, England. The Duchess of Cambridge yesterday gave birth to a boy at 16.24 BST and weighing 8lb 6oz, with Prince William at her side. The baby, as yet unnamed, is third in line to the throne and becomes the Prince of Cambridge. (Photo by Peter Macdiarmid/Getty Images)

George.com clothing reported that more than 5,000 of its polka-dot dresses sold online as women hurried to snap up a piece of clothing that would emulate the royal mum.

Other polka-dot items including high-waisted shorts, chiffon skirts, vest tops, bikinis and ballet pumps also saw a boost in sales overnight.

Jenny Packham saw her website crash on Tuesday after Duchess Kate proudly showed off her yummy tummy in the UK designer's dress.

Packham's named even trended on Twitter just minutes after the Duke and Duchess stepped out of the Lindo Wing of St. Mary's Hospital with their baby boy.

The "Kate Effect," as the phenomenon has been lovingly called, has been in full force since Middleton's Alexander McQueen wedding dress sent women into a frenzy, snapping up look-a-like gowns. Since her wedding to Prince William in 2011, Kate's fashion has boosted sales for whichever designer she happens to wear and her maternity style has also caused shoppers to snap up outfits online.

So, as we wait for the official portrait of the young royal family, we can predict that Kate mania won't die down anytime soon.

Kate really does have amazing style:

Loading Slideshow...
  • Britain's Catherine Duchess of Cambridge waves as she rides back to Buckingham Palace following the Queen's Birthday parade, 'Trooping the Colour,' in central London on June 15, 2013.

  • Catherine, Duchess of Cambridge laughs on the balcony of Buckingham Palace during the annual Trooping the Colour Ceremony on June 15, 2013 in London, England.

  • Britain's Catherine, Duchess of Cambridge arrives for a ceremony to officially name Princess Cruises's new ship 'Royal Princess' in Southampton, southern England on June 13, 2013.

  • Britain's Catherine, Duchess of Cambridge (R) attends a ceremony to officially name Princess Cruises's new ship 'Royal Princess' in Southampton, southern England on June 13, 2013.

  • Catherine, Duchess of Cambridge attends the Princess Cruises ship naming ceremony at Ocean Terminal on June 13, 2013 in Southampton, England.

  • Britain's Prince William his wife Catherine, Duchess of Cambridge, and Prince Harry arrive at Westminster Abbey in London, on June 4, 2013 for a service to celebrate the 60th anniversary of the Coronation Service.

  • Britain's Prince William and Kate, Duchess of Cambridge, arrive for a service to celebrate the 60th anniversary of the coronation of Britain's Queen Elizabeth II at Westminster Abbey in London on Tuesday, June 4, 2013.

  • Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for a service of celebration to mark the 60th anniversary of the Coronation Queen Elizabeth II at Westminster Abbey on June 4, 2013 in London, England.

  • Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for a service of celebration to mark the 60th anniversary of the Coronation Queen Elizabeth II at Westminster Abbey on June 4, 2013 in London, England.

  • Britain's Catherine, Duchess of Cambridge attends a garden party at Buckingham Palace in London May 22, 2013.

  • Camilla, The Duchess of Cornwall (L) and Catherine, Duchess of Cambridge attend a garden party at Buckingham Palace in London May 22, 2013.

  • Queen Elizabeth II Hosts A Garden Party At Buckingham Palace

    LONDON, ENGLAND - MAY 22: Catherine, Duchess of Cambridge (detail) attends a Garden Party in the grounds of Buckingham Palace hosted by Queen Elizabeth II on May 22, 2013. (Photo by John Stillwell - WPA Pool/Getty Images)

  • Prince Charles, the Prince of Wales (L), Camilla, the Duchess of Cornwall (C) and Catherine, the Duchess of Cambridge attend a garden party in the grounds of Buckingham Palace on May 22, 2013.

  • Catherine, Duchess of Cambridge talks to guests as she attends a garden party in the grounds of Buckingham Palace on May 22, 2013.

  • Catherine, Duchess of Cambridge meets children and staff during a visit to Naomi House Children's Hospice on April 29, 2013 near Winchester, Hampshire, England.

  • Catherine, Duchess of Cambridge Visits Naomi House on April 29, 2013 in Hampshire, England.

  • Catherine, Duchess of Cambridge arrives at the Inauguration Of Warner Bros. Studios Leavesden on April 26, 2013 in London, England.

  • Catherine, Duchess of Cambridge arrives at the Inauguration Of Warner Bros. Studios Leavesden on April 26, 2013 in London, England.

  • Catherine, Duchess of Cambridge attends an evening reception to celebrate the work of The Art Room charity at The National Portrait Gallery on April 24, 2013 in London, England.

  • Britain's Catherine, Duchess of Cambridge attends an evening reception to celebrate the work of The Art Room charity at The National Portrait Gallery in London on April 24, 2013.

  • Catherine, Duchess of Cambridge arrives to visit The Willows Primary School on April 23, 2013 in Manchester, England.

  • Catherine, Duchess of Cambridge arrives to visit The Willows Primary School on April 23, 2013 in Manchester, England.

  • Catherine, Duchess of Cambridge attends the National Review of Queen's Scouts at Windsor Castle on April 21, 2013 in Windsor, England.

  • Catherine, Duchess of Cambridge attends the National Review of Queen's Scouts at Windsor Castle on April 21, 2013.

  • Catherine, Countess of Strathearn during a visit to Dumfries House on April 5, 2013 in Ayrshire, Scotland.

  • Catherine, Duchess of Cambridge visits Dumfries House in Ayrshire, Scotland, on April 5, 2013.

  • Catherine, Countess of Strathearn visits the Donald Dewar Leisure Centre to launch a new project for their foundation on April 4, 2013 in Glasgow, Scotland.

  • Catherine, Countess of Strathearn visits the Donald Dewar Leisure Centre to launch a new project for their foundation on April 4, 2013 in Glasgow, Scotland.

  • Catherine, Duchess of Cambridge visits the Baker Street tube station with Queen Elizabeth II and Prince Philip, Duke of Edinburgh in London on March 20, 2013 to mark the 150th anniversary of the London underground.

  • Catherine, Duchess of Cambridge makes an official visit to the Baker Street tube station on March 20, 2013 in London, England.

  • Catherine, Duchess of Cambridge leaves following a visit to the offices of Child Bereavement UK in Saunderton, Buckinghamshire on March 19, 2013.

  • Catherine, Duchess of Cambridge receive a teddy bear during a visit to the offices of Child Bereavement UK in Saunderton, Buckinghamshire on March 19, 2013.

  • Catherine, Duchess of Cambridge visits the offices of Child Bereavement UK in Saunderton, Buckinghamshire on March 19, 2013.

  • Catherine, Duchess of Cambridge and her husband, Prince William, attend the St. Patrick's Day Parade at Mons Barracks in Aldershot, England on March 17, 2013.

  • Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a St. Patrick's Day parade by the 1st Battalion Irish Guards as they visit Aldershot Barracks on St Patrick's Day on March 17, 2013 in Aldershot, England.

  • Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge watch the races on Gold Cup Day at Cheltenham Racecourse on March 15, 2013 in Cheltenham, England.

  • Catherine, Duchess of Cambridge attends day four of the Cheltenham Festival at Cheltenham Racecourse on March 15, 2013 in Cheltenham, England.

  • Catherine, Duchess of Cambridge visits Humberside Fire and Rescue Peaks Lane Fire Station on March 5, 2013 in Grimsby, England.

  • Catherine, The Duchess of Cambridge arrives to visit the National Fishing Heritage Centre on March 5, 2013 in Grimsby, England.

  • Catherine, Duchess of Cambridge visits Hope House Residential Centre on February 19, 2013 in London, England.

  • This picture taken on February 19, 2013 shows the 'baby bump' of Britain's Catherine, Duchess of Cambridge as she arrives at the Hope House charity in south London.

  • Catherine, Duchess of Cambridge is seen after viewing artist Paul Emsley's new portrait of herself during a private viewing at the National Portrait Gallery on January 11, 2013 in London, England.

  • Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge meet artist Paul Emsley after viewing his new portrait of the Duchess during a private viewing at the National Portrait Gallery on January 11, 2013 in London, England.

  • The Duchess of Cambridge, Catherine Middleton and Prince William, Duke of Cambridge leave the King Edward VII Hospital where she has been treated for hyperemesis gravidarum, extreme morning sickness, on December 6, 2012 in London, England.

  • Prince William, Duke of Cambridge arrives at the King Edward VII Hospital in central London on December 6, 2012, where Catherine, Duchess of Cambridge was admitted for severe morning sickness.

  • MORE: Potential Baby Names For Will And Kate

  • Elizabeth

    <strong>FAMILY TREE:</strong> Queen Elizabeth II, Queen of the United Kingdom and the Commonwealth and Prince William's grandmother. <strong>MEANING:</strong> <a href="http://www.thinkbabynames.com/meaning/0/Elizabeth#qwA1pvxW5c1iTKTx.99"><em>Elizabeth is of Hebrew origin and means God's promise or God is my oath.</em></a> <strong>WHY WE LIKE IT: </strong> Why wouldn't you want to be named after one of the most powerful women in the United Kingdom? Even though sources report that the couple has decided to use <a href="http://hollywoodlife.com/2012/06/11/prince-william-kate-middleton-baby-plans-name-princess-diana/">Elizabeth as one of two middle names</a>, Elizabeth not only honours the baby's great grandmother, but Kate Middleton's middle name is Elizabeth as well.

  • George VI

    <strong>FAMILY TREE:</strong> King George VI was King of the United Kingdom from 1936 to 1952. <strong>MEANING:</strong> <a href="http://www.thinkbabynames.com/meaning/1/George#zuPdDDIpXvFRlxtj.99">Originally of Greek origin, the meaning of George is "farmer". Also there is the story of Saint George, a knight who became the patron saint of England and achieved legendary status after his struggle with a fire-breathing dragon.</a> <strong>WHY WE LIKE IT: </strong> Besides being a dragon slayer, the name George <a href="http://www.britroyals.com/royaltree.htm">goes back to the Royal family's history books since 1660</a>. George VI was also the last male figure in power — this title currently belongs to Queen Elizabeth II.

  • Diana

    <strong>FAMILY TREE:</strong> Princess Diana, The Princess of Wales and Prince William's mother. <strong>MEANING:</strong> <em><a href="http://babynamesworld.parentsconnect.com/meaning_of_Diana.html">Diana is derived from either an Indo-European root meaning 'divine' or from the Latin word 'diviana.'</a></em> <strong>WHY WE LIKE IT: </strong> After Princess Diana's tragic car crash in 1997, Diana would be a wonderful tribute to remember Lady Di. Again, sources say the couple plan on using Diana as a middle name, but we would love to see Diana used as the first name.

  • William Jr.

    <strong>FAMILY TREE:</strong> Prince William, Duke of Cambridge and father. <strong>MEANING:</strong><em> <a href="http://www.thinkbabynames.com/meaning/1/William#kRsY6f1d4xSc9wCW.99">William is of Old German origin and means protection.</a></em> <strong>WHY WE LIKE IT: </strong> Maybe a reason to follow in his father's footsteps, William Jr. may be a suitable name if the couple had a baby boy. Prince William has always been known for his <a href="http://www.biography.com/people/prince-william-9542068">good grades, his love for sports and being a philanthropist.</a>

  • Margaret Rose

    <strong>FAMILY TREE:</strong> Princess Margaret, Countess of Snowdon, was Queen Elizabeth's sister. <strong>MEANING:</strong> <a href="http://www.thinkbabynames.com/meaning/0/Margaret#TXLuZUx8EPt4sFuw.99"><em> Margaret is of Greek origin and means pearl.</em></a> <strong>WHY WE LIKE IT: </strong> Keeping it in the family, we like that fact that Princess Margaret was the Queen's youngest and only sibling. Margaret lived a life of controversy when it came to her love life and divorce, but <a href="http://www.telegraph.co.uk/news/obituaries/1384429/H-R-H-The-Princess-Margaret.html">she was remembered for her affection and love for her family</a>, according to The Telegraph. Plus, so many good nickname possibilities!

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