_Gerhard VI OLDENBURG _____+
                                            | (1430 - 1499) m 1453      
                       _John V OLDENBURG ___|
                      | (1460 - 1525)       |
                      |                     |_Adelheid of TECKLENBURG __
                      |                       (1435 - 1476) m 1453      
 _Anton I OLDENBURG __|
| (1505 - 1572) m 1536|
|                     |                      _George I ASCANIA _________+
|                     |                     | (1390 - 1474)             
|                     |_Anna of ASCANIA ____|
|                       (.... - 1531)       |
|                                           |_Anna of LINDOW-RUPPIN ____
|                                             (1430 - 1513)             
|
|--John VII OLDENBURG 
|  (1540 - 1603)
|                                            _John V ASCANIA ___________+
|                                           | (1439 - 1507)             
|                      _Magnus I ASCANIA ___|
|                     | (1469 - 1563)       |
|                     |                     |_Dorothea of HOHENZOLLERN _+
|                     |                       (1446 - 1518)             
|_Sophie of ASCANIA __|
  (1521 - 1571) m 1536|
                      |                      _Henry IV WELF ____________+
                      |                     | (1463 - 1514)             
                      |_Catherine of WELF __|
                        (1488 - 1563)       |
                                            |_Catherine of GRIFFIN _____+
                                              (1465 - 1526)