Clement IV (23 November 1190/1200 – 29 November 1268), born Gui Foucois called in later life le Gros (Guy Foulques the Fat; Italian: Guido Fulcodi il Grosso), is Pope from 5 February 1265 until his death.
He is elected in an election held at Perugia that lasts four months while cardinals argue over whether to call in Charles of Anjou, the youngest brother of King Louis IX of France to carry on the papal war against the imperial house of Hohenstaufen.