July 29, 1981 With a television audience of almost a billion, Diana Spencer marries Charles, Prince of Wales and heir to the throne of Great Britain, at St. Paul's Cathedral in London.

With William likely becoming the Prince of Wales, Kate will get a title of her own: Princess of Wales. If it sounds familiar, there's a reason: Princess Diana once held the title herself.

Diana, Princess of Wales, looks over her shoulder and smiles during banquet for Japanese Emperor Akihito in Tokyo November 12, 1990. Kimimasa Mayama/Reuters ...

Redditors are confused over what hair colour Diana, Princess of Wales was born with - some claim it was auburn while others ...

Diana became the Princess of Wales after marrying future King Charles in 1981. However, Lady Di kept the name even after the pair’s 1996 divorce and Camilla decided against taking the title ...

After Princess Diana’s passing, Prince Charles’s second wife Camilla Parker Bowles chose not to use the title of Princess of Wales out of respect for Princess Diana.

As well as being characteristically chic and perfectly suited to the occasion, her outfit is strikingly similar to the one Diana wore for Trooping the Colour in 1988 - a green and white-trim dress ...

In her lifetime, Princess Diana did not think her ex was "cut out to be king." Before her tragic death in 1997, the Princess of Wales opened up about Charles' future role as monarch to Jennie Bond ...

In a video tweeted by @hellen3030, the duchess was told: "You're going to be a brilliant Princess of Wales." "Thank you, I'm in good hands," Kate responded, indicating William a few feet away.