_Christian II OLDENBURG __________+ | (1178 - 1233) _John I OLDENBURG ___________________| | (1204 - 1270) | | |_Agnes of ALTENA-ISENBURG ________ | (1166 - 1217) _Christian III OLDENBURG _| | (1245 - 1285) | | | __________________________________ | | | | |_Richeza of HOYA-STUMPENHAUSEN ______| | (1220 - 1270) | | |__________________________________ | | |--Otto VI OLDENBURG | (1262 - 1348) | _Burchard OLDENBURG-WILDESHAUSEN _+ | | (1175 - 1233) | _Heinrich IV OLDENBURG-WILDESHAUSEN _| | | (1219 - 1270) | | | |__________________________________ | | |_Hedwig of WILDESHAUSEN __| (1233 - 1314) | | __________________________________ | | |_____________________________________| | |__________________________________