Prince William and Kate Middleton, the Princess of Wales, have a big day coming up. On April 29, the royal pair will celebrate their 14th wedding anniversary. And while they are a rather busy duo ...

Turns out it's something of a royal tradition to invite exes to one's wedding (help), and William isn't alone. Queen Camilla ...

The order of chivalry was founded by King Edward III in 1348, and the Duchess of Cambridge, 40, made her royal debut at the prestigious event back in 2008 when she and Prince William were dating.