Frederick II of Sicily may refer to: *

Frederick II, Holy Roman Emperor Frederick II (German language, German: ''Friedrich''; Italian language, Italian: ''Federico''; Latin: ''Federicus''; 26 December 1194 – 13 December 1250) was King of Sicily from 1198, King of Germany from 1212, King of Italy and Holy Roman Em ...

(1194–1250), who technically was Frederick I of Sicily but the regnal number II was used of him throughout his various realms *

Frederick III of Sicily Frederick II (or III) (13 December 1272 – 25 June 1337) was the regent of the Kingdom of Sicily from 1291 until 1295 and subsequently King of Sicily from 1295 until his death. He was the third son of Peter III of Aragon and served in the W ...

(1272–1337), who technically was Frederick II but used Frederick III

See also