Person
Peter III of Aragon
King of Aragon and Valencia; Count of Barcelona
Peter the Great (Catalan: Pere el Gran, Aragonese: Pero lo Gran; 1239, in Valencia – 2 November 1285) is the King of Aragon (as Peter III) of Valencia (as Peter I), and Count of Barcelona (as Peter II) from 1276 to his death.
He conquers Sicily and becomes its king in 1282.