Father : Henry I WELF #70808
Mother : Agnes of WETTIN #70815
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_Otto I WELF _______________+ | (1204 - 1252) m 1228 _Albert I WELF ____________| | (1236 - 1279) | | |_Matilda of ASCANIA ________+ | (1210 - 1261) m 1228 _Henry I WELF _______| | (1267 - 1322) m 1282| | | ____________________________ | | | | |_Adelheid of ALERAMICI ____| | (1242 - 1285) | | |____________________________ | | |--Mechtild of WELF | (1295 - 1343) | _Henry III WETTIN __________+ | | (1215 - 1287) | _Albert II WETTIN _________| | | (1240 - 1314) | | | |_Constantia of BABENBERG ___+ | | (1212 - 1243) |_Agnes of WETTIN ____| (1264 - 1332) m 1282| | _Frederick II HOHENSTAUFEN _+ | | (1194 - 1250) m 1235 |_Margaret of HOHENSTAUFEN _| (1241 - 1270) | |_Isabelle PLANTAGENET ______+ (1214 - 1241) m 1235