Kate Middleton, the Duchess of Cambridge, has given birth to a baby boy and future king, marking the arrival of the most anticipated new heir to the British throne in more than three decades.

The Prince of Cambridge was born at at 4:24 p.m. BST (11:24 a.m. ET) and weighed in at eight pounds and six ounces, with Prince William present for the birth, according to Clarence House, the official residence of the Duke and Duchess of Cambridge. "Her Royal Highness and her child are both doing well and will remain in hospital overnight," Clarence House tweeted.

A name has yet to be announced, but that hasn't stopped bookies, media and royal followers from placing their bets, with with Brits leaning toward James or George.

The first-born child of Kate Middleton and Prince William, both 31, bumps his uncle Prince Harry for the third spot in the line of succession, behind his grandfather, Prince Charles, and his dad. He is the third great-grandchild of Queen Elizabeth II.

"An important moment in the life of our nation, but above all a wonderful moment for a warm and loving couple," British Prime Minister David Cameron said shortly after the baby's arrival was telegraphed around the world.

The Duchess gave birth at St. Mary's Hospital in London, the same hospital where the late Princess Diana gave birth to William and Harry. Upon leaving the hospital, Kate will be expected to pose for the first public photographs of the little prince, as Diana did as well.

Story continues below slideshow -- read more about the royal birth:

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  • A notice proclaiming the birth of a baby boy of Prince William and Kate, Duchess of Cambridge is display for the public view at Buckingham Palace in London, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • Ed Perkins, a Buckingham Palace official hands over the birth announcement to a colleague in a car to be driven to Buckingham Palace, outside St. Mary's Hospital exclusive Lindo Wing in London, Monday, July 22, 2013. Palace officials say Prince William's wife Kate has given birth to a baby boy. The baby was born at 4:24 p.m. and weighs 8 pounds 6 ounces. The infant will become third in line for the British throne after Prince Charles and William. (AP Photo/Lefteris Pitarakis)

  • The Queen's Press Secretary Ailsa Anderson with Badar Azim, a footman, carry out a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge to put on display for the public view at Buckingham Palace in London, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • Members of the public lean in to take pictures as the Queen's Press Secretary Ailsa Anderson with Badar Azim, a footman, put up a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge on display for public view at Buckingham Palace in London, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • An easel stands in the forecourt of Buckingham Palace in London carrying an official document to announce the birth of a baby boy, at 4.24pm to the Duke and Duchess of Cambridge at St Mary's Hospital, Monday July 22, 2013. The child is now third in line to the British throne. (AP Photo/John Stillwell, Pool)

  • People take pictures of a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge on display for public view at Buckingham Palace in London, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • People look through the railing of Buckingham Palace in London at a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge put up on display for the public view, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • Tony Appleton, a town crier, announces the birth of the royal baby, outside St. Mary's Hospital exclusive Lindo Wing in London, Monday, July 22, 2013. Palace officials say Prince William's wife Kate has given birth to a baby boy. The baby was born at 4:24 p.m. and weighs 8 pounds 6 ounces. The infant will become third in line for the British throne after Prince Charles and William. (AP Photo/Lefteris Pitarakis)

  • Tony Appleton, a town crier, rings his bell as he announces the birth of the royal baby, outside St. Mary's Hospital exclusive Lindo Wing in London, Monday, July 22, 2013. Palace officials say Prince William's wife Kate has given birth to a baby boy. The baby was born at 4:24 p.m. and weighs 8 pounds 6 ounces. The infant will become third in line for the British throne after Prince Charles and William. (AP Photo/Lefteris Pitarakis)

  • A police officer tries to control a crowd of people trying to get to the railing to take pictures of a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge on display for public view at Buckingham Palace in London, Monday, July 22, 2013. (AP Photo/Sang Tan)

  • Members of the public celebrate outside Buckingham Palace after an easel was placed in the forecourt of the Palace with the notification to announce the birth of a baby boy, at 4.24pm to the Duke and Duchess of Cambridge at St Mary's Hospital in west London, Monday July 22, 2013.(AP Photo/Clive Gee, PA) UNITED KINGDOM OUT - NO SALES - NO ARCHIVES

As thousands of well-wishers celebrated outside St. Mary's Hospital and Buckingham Palace, new grandfather Prince Charles also issued a statement on behalf of himself and Camilla, the Duchess of Cornwall: "Both my wife and I are overjoyed at the arrival of my first grandchild. It is an incredibly special moment for William and Catherine and we are so thrilled for them on the birth of their baby boy."

And proud father William reportedly made a short statement that said it all: "We couldn't be happier."

In keeping with the pomp and circumstance of royal tradition, a formal birth announcement was carried from the hospital to Buckingham Palace by a royal aide and displayed on a wooden and gold easel by the palace gates. A St. James Palace aide told Us Weekly previously that the same easel was last used for William's 1982 birth.

Palace officials said Kate was admitted to the hospital in the early stages of labour in the wee hours of Monday morning, with Will by her side.

According to the new parents, who were married in April 2011, the gender of the baby was a surprise — though bets and speculation about the baby's sex (or possible twins) have been swirling since Kate's pregnancy was announced in December. Meanwhile, bookies have been taking wagers on baby names from more than 100 countries.

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  • Gilded Easel

  • MORE: Kate Middleton's Maternity Style

  • 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.

And the rumour mill doesn't stop at names and gender, with bets taken on everything from the royal baby's hair colour to university, career choices and even which magazine will have the first exclusive photos.

If the relentless news flow around Kate's pregnancy was any indication, the royal baby will be one of the most obsessed-over kids on earth. Kate made headlines around the world when she was hospitalized early in her pregnancy due to acute morning sickness, and unsurprisingly the media has been scrutinizing her every move -- including her fashion choices, shopping list, birth options and social calendar.

The weeks leading up to the baby's birth have been suspense-filled as royal-watchers and media alike speculated on the Duchess' due date -- was it to be July 1? 13? 19? 23? The scene outside St. Mary's Hospital included live web cam streams, scores of tourists, and even some Kate and Will impersonators planted to stir up the media swarm that had set up camp. Kate and William, meanwhile, were scarce seen in the final days, save for a polo match attended by Wills and brother Harry.

While the royal couple will probably keep a low profile with their son in the coming weeks and months, the public and media can expect much fanfare any time baby Cambridge makes an appearance, including his upcoming christening and possibly a royal tour of Australia and New Zealand in spring 2014.

Diana took a baby Prince William on the same trip in 1983, and we bet Will and Kate will want to follow in her footsteps when they take on their royal duties.

Check out the live blog below for the latest developments:

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Speculation over the royal couple's choice of name has run wild in the time since the Duchess of Cambridge's pregnancy was announced, with Brits betting on front-runners with and without strong historical precedents.

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By choosing a polka-dotted dress for her hospital departure, Kate has inadvertently opened the flood gates to another wave of comparison to a woman she has never even met.

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Sin City has officially extended an offer for the royal baby to visit once he's of age. Do you think baby George's uncle, Prince Harry, will come along?

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Your sex life will never be the same. In my day. What, not breast-feeding?

From diet tips to "little baby, little problems," sleep-deprived and super-stressed new parents have heard it all. And they want you to stop it.

As Britain's Prince William and his wife, Kate, move along on their parenting journey, it seems even the queen has had a what-not-to-say moment. According to a special edition of Us magazine on raising royals, she exclaimed soon after William's birth: "Thank goodness he hasn't ears like his father!"

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All of a sudden, there's a lot more interest in Carole Middleton, the Duchess of Cambridge's 58-year-old mom and the only biological grandmother of the littlest future king of England.

With Kate and her mom extremely close, and the new parents both eager to live somewhat of a normal life, you can be sure Grannie Middleton will want to be very hands-on in her new royal role. Here's what you need to know about Carole.

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...as told by GIFs. See them here.

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The Telegraph reports that the couple hasn't yet finished decorating a nursery because they are waiting for the completion of their new apartment within Kensington Palace. According to E! Online, this 20-room space, also known as Apartment 1A, will be ready for the growing family in August. Prior to the renovations, this vacant area was serving as an office and storage space.

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The royal baby is here! Now that we've seen him and his parents have said some sweet words about the birth, we're left wondering... what is his official title?

Until Will and Kate choose a first name, the royal baby will officially be titled as "HRH Prince of Cambridge." It makes sense, given that his father is titled "Prince William, Duke of Cambridge" and Kate is titled "Catherine, Duchess of Cambridge." In fact, the royal baby's title will be the first time "Prince of Cambridge" has been used in 194 years! Find out more about his royal title here.

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Kate Middleton gave birth to a son on Monday afternoon, but the Duke and Duchess of Cambridge have not yet made their baby name choice public -- and if precedent is any indication, it could be a week or even a month before their selection is announced.

On leaving the hospital with his wife and newborn on Tuesday, Prince William said the couple are "still working on a name," assuring an eager public, "We'll have that as soon as we can."

In the meantime, the baby name frenzy, that's been brewing since Kate's pregnancy was announced, is at its peak. Find out which royal name is the favorite!

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Baby nailed that wave. on Twitpic

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Preliminary thoughts upon “meeting” the Royal Baby for the first time:

He waves! Our first Royal wave.

Kate didn't fall down the steps while holding her son. I held my breath just in case. After all, she was wearing heels.

Kate made absolutely no attempt to appear like anything other than a woman who has just given birth. Okay, her hair looked better than most new mothers, but

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Kate Middleton and Prince William left St Mary's Hospital at 7:14 pm BST on July 23 with the royal baby boy in tow.

The duchess arrived at the hospital early in the morning on July 22 through a secret entrance. She gave birth to the 8-pound, 6-ounce baby at 4:24 p.m that day, more than a week after his rumored due date.

"I'll remind him of his tardiness when he's a bit older," Prince William joked to the press waiting outside the hospital. Kate stood beside Will holding her newborn son while wearing a bespoke blue dress by British designer, Jenny Packham. See photos here.

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Though he may never escape the glare of the limelight, we hope the newborn son of the Duke and Duchess of Cambridge will be comforted by his many blessings: a beautiful home, famous friends, thousands of adoring fans and… oh yes, a hefty billion dollar inheritance. Read more about it here.

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Miss Piggy and Kermit the Frog just became the latest heavyweights to congratulate Prince William and Kate Middleton on the birth of the royal baby.

Walt Disney Studios posted a video on Tuesday of Kermit and Miss Piggy on the set of the upcoming Muppets movie, "Muppets Most Wanted." Watch it here.

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When asked about the royal baby, the first-time grandmother said he's "absolutely beautiful."

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The majority of British residents would be comfortable if Prince William and the Duchess of Cambridge's firstborn child grew up to be gay, according to a new survey.

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Kate's mother and father, first-time grandparents, arrived at the Lindo Wing shortly after 3 pm on Tuesday.

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Within Will and Kate's first day as parents, revelers celebrate at Buckingham Palace, Westminster Abbey tolls bells and royal artilleries launch gun salutes. Australia has already dedicated a building to the royal baby.

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middletons

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Queen Elizabeth's imminent vacation may speed an announcement along.

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Royal tots in Belgium, Tokyo and beyond just got a new playmate to join their exceptionally exclusive kids' club.

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Protection officers were spotted dropping off not one, but two pizza pies at the rear entrance of St Mary's Lindo Wing.

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The bells will ring from 2:00 pm - 5:00 pm in London. Watch and listen here.

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