The Duke and Duchess of Cambridge are celebrating their eighth wedding anniversary.

Kensington Palace thanked royal fans on Monday for their well wishes as they tweeted throwback photos of William and Kate on their big day on April 29, 2011.

The pair, who now have three children – Prince George, Prince Charlotte and Prince Louis – were flatmates after meeting at St Andrews university in Fife, Scotland.

William and Kate at the rugby
Prince William and Kate Middleton watching the rugby at Twickenham in 2007 (David Davies/PA)

They dated for more than eight years before finally marrying in the grand surrounds of Westminster Abbey in central London in front of 1,900 guests, watched by a global television audience of millions.

The Royal Wedding
The couple kiss on the Buckingham Palace balcony (Chris Ison/PA)

Eighth wedding anniversaries are traditionally marked with gifts of bronze.

In the past year, second in line to the throne William and Kate have split their Kensington Palace household from the Duke and Duchess of Sussex, who moved to live in Windsor, and set up their own office in Buckingham Palace.

Meghan and Harry
The Duke and Duchess of Sussex have moved to Windsor (Chris Jackson/PA)

They have also faced reports of a rift between William and younger brother Harry.

The Cambridges, who just last week celebrated Louis’ first birthday, are getting ready for Charlotte’s fourth birthday on Thursday.

Prince Louis
Prince Louis has turned one (HRH The Duchess of Cambridge 2018/PA)

Their wedding anniversary could end up as a double celebration for the royal family if Harry and Meghan’s first born arrives by the end of Monday.

American former actress Meghan is due to give birth any day now.

The heavily pregnant ex-Suits star is likely to be resting in the Sussexes’ newly renovated home Frogmore Cottage, while Harry has been out and about, attending the London Marathon on Sunday.