Susan Ferguson Barrantes
Summary: mother of Sarah, the Duchess of York who had been married to the duchess's father Maj. Ronald Ferguson from 1956 to 1975 before left her family and moved to Argentina, where she later married professional polo player Hector Barrantes and caused quite a stir in society circles when she became subsequently branded as a "bolter."
Cause of Death: Car accident
Born: June 9, 1937
Died: September 19, 1998
Location: Tres Lomas, Argentina