Complex sentence: Henry (VII) (1211-February 10,1242), King of the Romans, King of Sicily, Duke of Swabia, from the Hohenstaufen dynasty, co-king of Emperor Frederick II and elder brother of king Conrad IV of Germany.
Split into simpler sentences: Henry (VII) (1211--February 10,1242), was King of the Romans, King of Sicily, and Duke of Swabia. He was the son and co-king of Emperor Frederick II and elder brother of King Conrad IV of Germany.