_Christian III OLDENBURG _+
                                                                 | (1503 - 1558)            
                                            _John II OLDENBURG __|
                                           | (1545 - 1622)       |
                                           |                     |_Dorothea of ASCANIA _____+
                                           |                       (1511 - 1571)            
 _Alexander SCHLESWIG-HOLSTEIN-SONDERBURG _|
| (1572 - 1627)                            |
|                                          |                      _Ernest III WELF _________+
|                                          |                     | (1518 - 1567)            
|                                          |_Elisabeth of WELF __|
|                                            (1549 - 1585)       |
|                                                                |_Margaret of GRIFFINS ____
|                                                                  (1518 - 1569)            
|
|--August Philipp SCHLESWIG-HOLSTEIN-SONDERBURG 
|  (1612 - 1675)
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|_Dorothea of SCHWARZBURG-SONDERSHAUSEN ___|
                                           |
                                           |                      __________________________
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