_Ulrich I CIRKSENA _______+
                                                        | (1408 - 1466)            
                       _Edzard I CIRKSENA ______________|
                      | (1461 - 1527)                   |
                      |                                 |_Theda UKENA _____________
                      |                                   (1432 - 1494)            
 _Enno II CIRKSENA ___|
| (1505 - 1540)       |
|                     |                                  __________________________
|                     |                                 |                          
|                     |_Elisabeth of WERL-AMSBERG-CUYK _|
|                                                       |
|                                                       |__________________________
|                                                                                  
|
|--Hedwig of CIRKSENA 
|  (1535 - 1616)
|                                                        _Gerhard VI OLDENBURG ____+
|                                                       | (1430 - 1499) m 1453     
|                      _John V OLDENBURG _______________|
|                     | (1460 - 1525)                   |
|                     |                                 |_Adelheid of TECKLENBURG _
|                     |                                   (1435 - 1476) m 1453     
|_Anna of OLDENBURG __|
  (1501 - 1575)       |
                      |                                  _George I ASCANIA ________+
                      |                                 | (1390 - 1474)            
                      |_Anna of ASCANIA ________________|
                        (.... - 1531)                   |
                                                        |_Anna of LINDOW-RUPPIN ___
                                                          (1430 - 1513)