_Henry V WELF ___________________+
                                                            | (1489 - 1568)                   
                           _Julius WELF ____________________|
                          | (1528 - 1589)                   |
                          |                                 |_Maria of WÜRTTEMBERG __________
                          |                                   (1496 - 1541)                   
 _Henry Julius WELF ______|
| (1564 - 1613)           |
|                         |                                  _Joachim II Hector HOHENZOLLERN _+
|                         |                                 | (1504 - 1570)                   
|                         |_Hedwig of HOHENZOLLERN _________|
|                           (1539 - 1602)                   |
|                                                           |_Hedwig of JAGIEŁŁO ___________+
|                                                             (1512 - 1572)                   
|
|--Frederick Ulrich WELF 
|  (1591 - 1634)
|                                                            _Christian III OLDENBURG ________+
|                                                           | (1503 - 1558)                   
|                          _Frederick II OLDENBURG _________|
|                         | (1534 - 1588)                   |
|                         |                                 |_Dorothea of ASCANIA ____________+
|                         |                                   (1511 - 1571)                   
|_Elizabeth of OLDENBURG _|
  (1573 - 1625)           |
                          |                                  _________________________________
                          |                                 |                                 
                          |_Sophie of MECKLENBURG-SCHWERIN _|
                            (1557 - 1631)                   |
                                                            |_________________________________