_Frederick I METZ _________________+
                                                               | (1143 - 1206)                     
                                 _Frederick II METZ ___________|
                                | (.... - 1213)                |
                                |                              |_Wierzchosława Ludmilla of PIAST _+
                                |                                (1153 - 1223)                     
 _Matthais II METZ _____________|
| (1193 - 1250) m 1225          |
|                               |                               _Theobald I MONTBÉLIARD __________+
|                               |                              | (1158 - 1238)                     
|                               |_Agnes of MONTBÉLIARD _______|
|                                 (1177 - 1226)                |
|                                                              |_Laurette of LOON _________________
|                                                                                                  
|
|--Isabelle of METZ 
|  (1231 - 1266)
|                                                               _Henry III ARDENNES-VERDUN ________+
|                                                              | (1140 - 1221)                     
|                                _Waleran III ARDENNES-VERDUN _|
|                               | (1165 - 1226) m 1214         |
|                               |                              |_Sophia of SAARBRÜCKEN ___________
|                               |                                                                  
|_Catherine of ARDENNES-VERDUN _|
  (1215 - 1255) m 1225          |
                                |                               _Henry IV NAMUR ___________________+
                                |                              | (1112 - 1196)                     
                                |_Ermesinde of NAMUR __________|
                                  (1186 - 1246) m 1214         |
                                                               |_Agnes of WASSENBERG ______________