John Saint John was born on August 31 1426, in Bledsoe Castle, Bedfordshire, England, to Oliver, of Lydiard Tregoze Saint John and Margaret de Welles/Saint John (born de Beauchamp). Oliver was born on July 8 1400, in Bletso Castle, Bedfordshire, England. Margaret was born on January 1 1405, in Bletsoe, Bedford, Bedfordshire, England. John had 13 siblings: Oliver Saint John, Edith de la Pole (born Saint John), Elizabeth le Scrope (born Saint John), Mary Saint John, Agnes Saint John, Margaret St.John, Lady Margaret Radcliffe (born Beaufort), Richard de Welles, Eleanor Hoo (born de Welles), Katherine Launde/Tempest (born de Welles), Cecilly Willoughby (born de Welles), John Welles Welles and Margaret Tudor (born de Beaufort). John married Alice Saint John (born Bradshaw) in 1493, at age 66 in Lancashire, England. Alice was born in 1426, in Haigh Manor, Lancashire, England. They had 2 children: Sir John St. John and Lady Alice Anne Parker stMorley (born StJohn Baroness Morley). His occupation was Knight. John passed away on November 29 1489, at age 63 in Bledsoe Castle, Bedfordshire, England.