Louis VII of France
In 1152, his marraige with Eleanor of Aquitaine ended as Eleanor grew tired of Louis' Crusade. She then got remarried to the 19-year-old Henry, Duke of Normandy the future King Henry II of England. After Henry became the King of England, Henry's kingdom dominated over France forming the Angevin Empire. Because of the English domination over France and losing battles in the Second Crusade, Louis was proved to be a weak king.