This is a special week for Kate and Will

The Duke and Duchess of Cambridge have a special week ahead of them, celebrating their eighth wedding anniversary and the birthday of daughter Princess Charlotte, who turns four on May 2.

It is also thought Meghan and Harry will welcome their first child this week, adding to the growing royal brood.

Kate, 37, and William, 36, wed on April 29 in 2011 at Westminster Abbey, in London, after announcing their engagement November 16, 2010. The pair met in 2001 while they were students in residence at St. Salvator's Hall at the University of St. Andrews and began dating in 2002.

The wedding was watched by 23 million viewers, and was attended by David and Victoria Beckham and Elton John.

They have three children together - Prince George who is five, Princess Charlotte and Prince Louis, who celebrated his first birthday on April 23.

Prince George turns six on July 22.

The Duke and Duchess are expected to release special photos to commemorate both their anniversary and their daughter's birthday.

Just last week, Kate released several new photos of Prince Louis to celebrate his first birthday.

It's a special birthday for Princess Charlotte who begins school later this year in September.

The Cambridge family spent the Easter break at their country home, Amner Hall in Norfolk, which is part of the Queen's Estate.

This time they were joined by Mike and Zara Tindall and their daughters Mia, five, and Lena, 10-months, with photos showing Kate giving Princess Charlotte a piggy back ride and William carrying Mia around on his shoulders.