_Henry WELF _____________________+
                                            | (1468 - 1531)                   
                       _Otto I WELF ________|
                      | (1495 - 1549)       |
                      |                     |_Margarete of WETTIN ____________+
                      |                       (1469 - 1528)                   
 _Otto II WELF _______|
| (1528 - ....) m 1562|
|                     |                      _________________________________
|                     |                     |                                 
|                     |_Meta VON CAMPE _____|
|                       (.... - 1580)       |
|                                           |_________________________________
|                                                                             
|
|--Otto III WELF 
|  (1571 - 1641)
|                                            _Edzard I CIRKSENA ______________+
|                                           | (1461 - 1527)                   
|                      _Enno II CIRKSENA ___|
|                     | (1505 - 1540)       |
|                     |                     |_Elisabeth of WERL-AMSBERG-CUYK _
|                     |                                                       
|_Hedwig of CIRKSENA _|
  (1535 - 1616) m 1562|
                      |                      _John V OLDENBURG _______________+
                      |                     | (1460 - 1525)                   
                      |_Anna of OLDENBURG __|
                        (1501 - 1575)       |
                                            |_Anna of ASCANIA ________________+
                                              (.... - 1531)