_Christian VI OLDENBURG ___+
                                                    | (1425 - 1481) m 1449      
                            _Frederick I OLDENBURG _|
                           | (1471 - 1533) m 1502   |
                           |                        |_Dorothea of HOHENZOLLERN _+
                           |                          (1430 - 1495) m 1449      
 _Christian III OLDENBURG _|
| (1503 - 1558)            |
|                          |                         _John Cicero HOHENZOLLERN _+
|                          |                        | (1455 - 1498) m 1476      
|                          |_Anna of HOHENZOLLERN __|
|                            (1487 - 1514) m 1502   |
|                                                   |_Margaret of WETTIN _______+
|                                                     (1449 - 1501) m 1476      
|
|--Anna of OLDENBURG 
|  (1532 - 1585)
|                                                    _John V ASCANIA ___________+
|                                                   | (1439 - 1507)             
|                           _Magnus I ASCANIA ______|
|                          | (1469 - 1563)          |
|                          |                        |_Dorothea of HOHENZOLLERN _+
|                          |                          (1446 - 1518)             
|_Dorothea of ASCANIA _____|
  (1511 - 1571)            |
                           |                         _Henry IV WELF ____________+
                           |                        | (1463 - 1514)             
                           |_Catherine of WELF _____|
                             (1488 - 1563)          |
                                                    |_Catherine of GRIFFIN _____+
                                                      (1465 - 1526)