premise: Henry III of France was murdered in 1859.
hypothesis: Henry III ( 1 October 1207 -- 16 November 1272 ) , also known as Henry of Winchester , was King of England , Lord of Ireland and Duke of Aquitaine from 1216 until his death . Henry died in 1272 , leaving Edward as his successor . He was buried in Westminster Abbey , which he had rebuilt in the second half of his reign , and was moved to his current tomb in 1290 . Henry III ( 19 September 1551 -- 2 August 1589 ; born Alexandre Édouard de France , Henryk Walezy , Henrikas Valua ) was a monarch of the House of Valois who was elected the monarch of the Polish-Lithuanian Commonwealth from 1573 to 1575 and ruled as King of France from 1574 until his death . In 1589 , Jacques Clément , a Catholic fanatic , murdered Henry III , who was succeeded by the King of Navarre who , as Henry IV , would assume the throne of France after converting to Catholicism , and become the first French king of the House of Bourbon .