Sir John Riddell, 13th Baronet Private Secretary to the Prince of Wales (1934–2010) (1934–2010) Parents Rachel Beatrice Lyttelton Sir Walter Riddell, 12th Baronet Children Sir Walter Riddell, 14th Baronet Robert Henry Riddell Hugh Gordon Riddell Siblings Anne Riddell Jean Riddell Mary Riddell Hester Riddell Partners Sarah Richardson