_Otto II NASSAU-SIEGEN _+
                                                      | (1305 - 1350)          
                              _John I NASSAU-SIEGEN __|
                             | (1340 - 1416) m 1357   |
                             |                        |_Adelheid of VIANDEN ___
                             |                                                 
 _Englebert I NASSAU-SIEGEN _|
| (1370 - 1442)              |
|                            |                         ________________________
|                            |                        |                        
|                            |_Margareta of LA MARCK _|
|                              (1409 - ....) m 1357   |
|                                                     |________________________
|                                                                              
|
|--Maria of NASSAU-SIEGEN 
|  (1417 - 1472)
|                                                      ________________________
|                                                     |                        
|                             ________________________|
|                            |                        |
|                            |                        |________________________
|                            |                                                 
|_Johanna VAN POLANEN _______|
  (1391 - 1445)              |
                             |                         ________________________
                             |                        |                        
                             |________________________|
                                                      |
                                                      |________________________