Richard III (997 - 1027) was the eldest son of Richard II, who died in 1027, and left the Duchy of Normandy to his eldest son. Although the eldest son, Richard died mysteriously soon after his father, leaving the duchy to his younger brother Robert II, sixth duke of Normandy and direct ancestor of the present-day British royal family. Richard reigned for a few months and never really had any effect on the Duchy of Normandy. He had children from two unknown mistresses. His wife was Adela, (or Alix) Countess of Contenance (1009-June 5, 1063), second daughter of Robert II of France and Constance of Arles.