_Otto I WELF ___________+
                                                     | (1204 - 1252) m 1228   
                           _John WELF _______________|
                          | (1242 - 1277)            |
                          |                          |_Matilda of ASCANIA ____+
                          |                            (1210 - 1261) m 1228   
 _Otto II WELF ___________|
| (1266 - 1330) m 1288    |
|                         |                           ________________________
|                         |                          |                        
|                         |_Liutgard of SCHAUENBURG _|
|                           (.... - 1288)            |
|                                                    |________________________
|                                                                             
|
|--Otto III WELF 
|  (1296 - 1352)
|                                                     _Otto II WITTELSBACH ___+
|                                                    | (1206 - 1253)          
|                          _Louis I WITTELSBACH _____|
|                         | (1229 - 1293)            |
|                         |                          |_Agnes of WELF _________+
|                         |                            (1201 - 1267)          
|_Matilda of WITTELSBACH _|
  (1275 - 1319) m 1288    |
                          |                           _Rudolf I HABSBURG _____+
                          |                          | (1218 - 1291)          
                          |_Matilda of HABSBURG _____|
                            (1253 - 1304)            |
                                                     |_Gertrude of HOHENBERG _
                                                       (1225 - 1280)