Isabel married Frederick II Hohenstaufen Holy Roman EMPEROR on 20 Jul 1235 in Worms. Frederick (son of Henry VI Holy Roman EMPEROR and Constance Of SICILY) was born on 26 Dec 1194 in Jesi nearr Ancona; died on 13 Dec 1250 in Fiorentino; was buried in Palermo. [Group Sheet] [Family Chart]
Margareta married Albrecht "the Degenerate" in 1254/5. Albrecht (son of Heinrich "The Illustrious" and Constantia Of AUSTRIA) was born in 1240; died in 1315. [Group Sheet] [Family Chart]