_Matthias I METZ _____________+
                                                             | (1119 - 1176)                
                          _Frederick I METZ _________________|
                         | (1143 - 1206)                     |
                         |                                   |_Bertha of HOHENSTAUFEN ______+
                         |                                     (1123 - 1195)                
 _Frederick II METZ _____|
| (.... - 1213)          |
|                        |                                    _Mieszko III PIAST ___________+
|                        |                                   | (1126 - 1201)                
|                        |_Wierzchosława Ludmilla of PIAST _|
|                          (1153 - 1223)                     |
|                                                            |_Elizabeth of ÁRPÁD ________+
|                                                                                           
|
|--Jacques METZ 
|  (.... - 1260)
|                                                             _Reginald II of MONTBÉLIARD _+
|                                                            |                              
|                         _Theobald I MONTBÉLIARD __________|
|                        | (1158 - 1238)                     |
|                        |                                   |______________________________
|                        |                                                                  
|_Agnes of MONTBÉLIARD _|
  (1177 - 1226)          |
                         |                                    ______________________________
                         |                                   |                              
                         |_Laurette of LOON _________________|
                                                             |
                                                             |______________________________