_Henry VI HOHENSTAUFEN _____________+ | (1165 - 1197) _Frederick II HOHENSTAUFEN __| | (1194 - 1250) | | |_Constance of SICILY _______________ | (1154 - 1198) _Manfred HOHENSTAUFEN ______| | (1232 - 1265) | | | ____________________________________ | | | | |_Bianca Lancia of AGLIANO ___| | (1210 - 1246) | | |____________________________________ | | |--Henry HOHENSTAUFEN | (.... - 1309) | _Michael I Komnenos Doukas ANGELOS _+ | | (1170 - 1215) | _Michael II Komnenos DOUKAS _| | | (.... - 1266) | | | |____________________________________ | | |_Helena Angelina of DOUKAS _| (1242 - 1271) | | ____________________________________ | | |_Theodora of PETRALIPHAS ____| | |____________________________________