Frances Shand Kydd
Frances Ruth Shand Kydd (later Spencer; née Roche; 20 January 1936 – 3 June 2004) was the mother of Diana, Princess of Wales. Shand Kydd was the maternal grandmother for Prince William, Duke of Cambridge and Prince Harry, Duke of Sussex. The earlier became the second in the line of succession to the British throne. The latter was the sixth in line of succession.