_John V OLDENBURG ________+
                                                      | (1460 - 1525)            
                              _Anton I OLDENBURG _____|
                             | (1505 - 1572) m 1536   |
                             |                        |_Anna of ASCANIA _________+
                             |                          (.... - 1531)            
 _Anton II OLDENBURG ________|
| (1550 - 1619) m 1600       |
|                            |                         _Magnus I ASCANIA ________+
|                            |                        | (1469 - 1563)            
|                            |_Sophie of ASCANIA _____|
|                              (1521 - 1571) m 1536   |
|                                                     |_Catherine of WELF _______+
|                                                       (1488 - 1563)            
|
|--Anna of OLDENBURG 
|  (1605 - 1688)
|                                                      _Ernest I WELF ___________+
|                                                     | (1497 - 1545)            
|                             _William VI WELF _______|
|                            | (1535 - 1592) m 1561   |
|                            |                        |_Sophia of MECKLENBURG ___+
|                            |                          (1508 - 1541)            
|_Sibylle Elisabeth of WELF _|
  (1576 - 1630) m 1600       |
                             |                         _Christian III OLDENBURG _+
                             |                        | (1503 - 1558)            
                             |_Dorothea of OLDENBURG _|
                               (1546 - 1616) m 1561   |
                                                      |_Dorothea of ASCANIA _____+
                                                        (1511 - 1571)