Husband: John III Doukas VATATZES
_Frederick III HOHENSTAUFEN _+ | (1122 - 1190) _Henry VI HOHENSTAUFEN _| | (1165 - 1197) | | |_Beatrice of BOURGOGNE ______ | (1143 - 1184) _Frederick II HOHENSTAUFEN _| | (1194 - 1250) | | | _____________________________ | | | | |_Constance of SICILY ___| | (1154 - 1198) | | |_____________________________ | | |--Constance of HOHENSTAUFEN | (1230 - 1307) | _____________________________ | | | ________________________| | | | | | |_____________________________ | | |_Bianca Lancia of AGLIANO __| (1210 - 1246) | | _____________________________ | | |________________________| | |_____________________________