Claim: Richard I of England, son of King Henry II of England and brother-in-law of William II of Sicily through the marriage of the later with his sister Joan of England, would prove to be just as adventurous as his kinsman.
Evidence: Richard I (8 September 1157 – 6 April 1199) was King of England from 1189 until his death. He was the third of five sons of King Henry II of England and Eleanor of Aquitaine and seemed unlikely to become king, but all his brothers except the youngest, John, predeceased their father. She married William II of Sicily and later Raymond VI, Count of Toulouse, two very important and powerful figures in the political landscape of Medieval Europe.