_Christian V OLDENBURG _____+
                                                     | (1342 - 1399)              
                             _Dietrich OLDENBURG ____|
                            | (1398 - 1439)          |
                            |                        |_Agnes of HONSTEIN _________
                            |                          (1350 - 1404)              
 _Christian VI OLDENBURG ___|
| (1425 - 1481) m 1449      |
|                           |                         ____________________________
|                           |                        |                            
|                           |_Helvig of SCHAUENBURG _|
|                             (1398 - 1436)          |
|                                                    |____________________________
|                                                                                 
|
|--Olaf OLDENBURG 
|  (1450 - 1451)
|                                                     _Frederick VI HOHENZOLLERN _+
|                                                    | (1371 - 1440) m 1401       
|                            _John II HOHENZOLLERN __|
|                           | (1406 - 1464)          |
|                           |                        |_Elisabeth of WITTELSBACH __+
|                           |                          (1383 - 1441) m 1401       
|_Dorothea of HOHENZOLLERN _|
  (1430 - 1495) m 1449      |
                            |                         _Rudolf III ASCANIA ________+
                            |                        | (1378 - 1419) m 1395       
                            |_Barbara of ASCANIA ____|
                              (1405 - 1465)          |
                                                     |_Barbara of PIAST __________+
                                                        m 1395