_Dietrich OLDENBURG _____+
                                                   | (1398 - 1439)           
                        _Christian VI OLDENBURG ___|
                       | (1425 - 1481) m 1449      |
                       |                           |_Helvig of SCHAUENBURG __
                       |                             (1398 - 1436)           
 _John OLDENBURG ______|
| (1454 - 1512)        |
|                      |                            _John II HOHENZOLLERN ___+
|                      |                           | (1406 - 1464)           
|                      |_Dorothea of HOHENZOLLERN _|
|                        (1430 - 1495) m 1449      |
|                                                  |_Barbara of ASCANIA _____+
|                                                    (1405 - 1465)           
|
|--Jacob OLDENBURG 
|  (1484 - 1566)
|                                                   _Frederick II WETTIN ____+
|                                                  | (1412 - 1464)           
|                       _Ernest WETTIN ____________|
|                      | (1440 - 1486)             |
|                      |                           |_Margaret of HABSBURG ___+
|                      |                             (1416 - 1485)           
|_Christina of WETTIN _|
  (1461 - 1521)        |
                       |                            _Albert III WITTELSBACH _+
                       |                           | (1401 - 1459)           
                       |_Elisabeth of WITTELSBACH _|
                         (1442 - 1483)             |
                                                   |_Anna of WELF ___________+
                                                     (1414 - 1474)