Frederick II, Holy Roman Emperor

Frederick II (Italian: Federico, Sicilian: Fidiricu, German: Friedrich, Latin: Fridericus; 26 December 1194 – 13 December 1250) was King of Sicily from 1198, King of Germany from 1212, King of Italy and Holy Roman Emperor from 1220, and King of Jerusalem from 1225 to 1228. He was the son of Emperor Henry VI, of the Hohenstaufen dynasty (the second son of Emperor Frederick Barbarossa), and Queen Constance I of Sicily, of the Hauteville dynasty. Frederick is considered to be one of the most brilliant and powerful figures of the Middle Ages and ruled a vast area, extending from Sicily in the south, through much of Italy, to Germany in the north.