Frances Ruth Shand Kydd was the mother of Diana, Princess of Wales. She was the maternal grandmother of William, Prince of Wales and Prince Harry, Duke of Sussex, respectively first and fifth in the line of succession to the British throne. Following her divorce from Viscount Althorp in 1969, and Diana's death in 1997, Shand Kydd devoted the final years of her life to Catholic charity work following her conversion to Catholicism.

Diana, Princess of Wales was a member of the British royal family. She was the first wife of Charles III and mother of Princes William and Harry. Her activism and glamour, which made her an international icon, earned her enduring popularity.