Members of the royal family didn't expect Kate Middleton and Prince William's love story to last.
They met at St Andrews University in Scotland in 2001.
Majority of the people close to them felt it was just a passing fancy.
William did all kinds of jobs after leaving college to get a sense of the Britain he will take over.
Catherine was left to go her own way but she survived.
Despite early concerns, they have been married for more than a decade and have three children.
Prince William and Kate have spent a good portion of the last twenty years by each other’s side.
Andrew Morton is a royal author who recently talked about the couple's love story.
The Duke and Duchess of Cambridge proved that they were always meant to be.