Frederick II of Aragon, also known as Frederick the Simple, was a king who ruled from 1296 to 1337. He was born in 1272 and was a member of the House of Barcelona. His reign was marked by political challenges, including conflicts with the Crown of Aragon and the Kingdom of Sicily, which affected his authority and governance. Frederick II is notable for his efforts to maintain peace in his realm and for his patronage of the arts and culture. He was a supporter of the Sicilian Vespers, a rebellion against the French rule in Sicily, which ultimately shaped the political landscape of the region during his time.