_Magnus II WELF ___________+
                                                        | (1324 - 1373) m 1356      
                            _Henry WELF ________________|
                           | (1355 - 1416)              |
                           |                            |_Catherine of ASCANIA _____+
                           |                              (1330 - 1389) m 1356      
 _William WELF ____________|
| (1392 - 1482) m 1423     |
|                          |                             _Wartislaw VI GRIFFIN _____+
|                          |                            | (1345 - 1394) m 1363      
|                          |_Sophie of GRIFFIN _________|
|                            (.... - 1406)              |
|                                                       |_Anne of MECKLENBURG ______+
|                                                          m 1363                   
|
|--William IV WELF 
|  (1425 - 1503)
|                                                        _Frederick V HOHENZOLLERN _+
|                                                       | (1332 - 1397) m 1350      
|                           _Frederick VI HOHENZOLLERN _|
|                          | (1371 - 1440) m 1401       |
|                          |                            |_Elisabeth of WETTIN ______+
|                          |                              (1329 - 1375) m 1350      
|_Cecilia of HOHENZOLLERN _|
  (1405 - 1448) m 1423     |
                           |                             _Frederick WITTELSBACH ____+
                           |                            | (1339 - 1393)             
                           |_Elisabeth of WITTELSBACH __|
                             (1383 - 1441) m 1401       |
                                                        |_Maddalena VISCONTI _______+
                                                          (1366 - 1404)