Kate Middleton – Catherine, Duchess of Cambridge – England, Value Unknown

One of the many perks that Kate Middleton enjoys as Duchess of Cambridge is her access to the British royal family’s vast real estate holdings. In 2013, Queen Elizabeth II gifted Kate and Prince William with Anmer Hall, a 17th-century mansion on the grounds of Her Majesty’s own Sandringham estate. Before the new couple moved in, Anmer Hall underwent a £1.5-million renovation.