premise: Henry II of France died in a tournament devoted to celebrating the Peace of Cateau-Cambrésis.
hypothesis: Henry II ( Henri II 31 March 1519 -- 10 July 1559 ) was a monarch of the House of Valois who ruled as King of France from 31 March 1547 until his death in 1559 . The Treaty of Cateau-Cambrésis ( 1559 ) , which put an end to the Italian Wars , had mixed results : France renounced its claims to territories in Italy , but gained certain other territories , including the Pale of Calais and the Three Bishoprics . Henry suffered an untimely death in a jousting tournament held to celebrate the Peace of Cateau-Cambrésis at the conclusion of the Eighth Italian War .