_William I NASSAU-SIEGEN _+
                                                                                         | (1487 - 1559)            
                                              _John VI NASSAU-DILLENBURG ________________|
                                             | (1536 - 1606) m 1559                      |
                                             |                                           |_Juliana of STOLBERG _____
                                             |                                             (1505 - 1580)            
 _John VII NASSAU-SIEGEN ____________________|
| (1561 - 1623)                              |
|                                            |                                            __________________________
|                                            |                                           |                          
|                                            |_Elisabeth of LEUCHTENBERG ________________|
|                                              (1536 - 1579) m 1559                      |
|                                                                                        |__________________________
|                                                                                                                   
|
|--Marie Juliane of NASSAU-SIEGEN 
|  (1612 - 1665)
|                                                                                         _Christian III OLDENBURG _+
|                                                                                        | (1503 - 1558)            
|                                             _John II of SCHLESWIG-HOLSTEIN-SONDERBURG _|
|                                            | (1545 - 1622)                             |
|                                            |                                           |_Dorothea of ASCANIA _____+
|                                            |                                             (1511 - 1571)            
|_Margaret of SCHLESWIG-HOLSTEIN-SONDERBURG _|
  (1582 - 1658)                              |
                                             |                                            _Ernest III WELF _________+
                                             |                                           | (1518 - 1567)            
                                             |_Elisabeth of WELF ________________________|
                                               (1549 - 1585)                             |
                                                                                         |_Margaret of GRIFFIN _____+
                                                                                           (1518 - 1569)