_John I NASSAU-WEILBURG ___________+
                                                           | (1309 - 1371) m 1353              
                               _Philipp I NASSAU-WEILBURG _|
                              | (1368 - 1429)              |
                              |                            |_Johanna of SAARBRÜCKEN-COMMERCY _
                              |                              (.... - 1381) m 1353              
 _Philip II NASSAU-WEILBURG __|
| (1417 - 1491)               |
|                             |                             _Frederick I LORRAINE _____________+
|                             |                            | (1369 - 1415)                     
|                             |_Elisabeth of LORRAINE _____|
|                               (1395 - 1455)              |
|                                                          |_Margaret of JOINVILLE ____________
|                                                            (1354 - 1418)                     
|
|--John III NASSAU-WEILBURG 
|  (1441 - 1480)
|                                                           ___________________________________
|                                                          |                                   
|                              ____________________________|
|                             |                            |
|                             |                            |___________________________________
|                             |                                                                
|_Margrete of LOON-HEINSBERG _|
                              |
                              |                             ___________________________________
                              |                            |                                   
                              |____________________________|
                                                           |
                                                           |___________________________________