04/29/2015 12:00 EDT

Will And Kate's Anniversary: Looking Back At The Days Before Parenthood

WPA Pool via Getty Images
LONDON, ENGLAND - APRIL 29: Prince William speaks to his bride, Catherine Middleton as she holds the hand of her father Michael Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dominic Lipinski - WPA Pool/Getty Images)

It's hard to believe Prince William and the Kate Middleton tied the knot four years ago at the stunning Westminster Abbey in London.

With all the frenzy surrounding the arrival of royal baby number two (how cool would it be to be born on your parents' anniversary date?) and the birth of Prince George in 2013, it's nice to focus on the Duke and Duchess of Cambridge as a couple for once.

The couple met back in 2001 at St. Andrew's University, according to The Mirror. And although there have been stories about the pair breaking up and seeing other people over the years, sources say the lovebirds officially got back together in 2006. And in November 2010, the Clarence House confirmed the duo would be engaged.

During their engagement year, The Duke even said he admired his fiancee for her "naughty sense of humour." It turns out the Prince found his own humour a little dry.

To celebrate four years together and four years of changes, we look back at some of the most adorable photos of the royals in 2010, 2011 (the wedding year, of course) and in 2012 before Prince George was born.

Happy Anniversary Will And Kate!