A young Diana Spencer became one of the most famous women in the world when she married the future King Charles III in ...

A long ago summer, by the swimming pool at our childhood home," Spencer captioned the image posted to Instagram on Tuesday.

Thirty years later, Prince William and then-Kate Middleton tied the knot at Westminster Abbey over St. Paul’s because of the Abbey’s “staggering beauty, its 1,000 years of royal history and its ...