_Frederick III METZ __________+
                                                 | (1240 - 1303) m 1255         
                          _Theobald II METZ _____|
                         | (1263 - 1312) m 1278  |
                         |                       |_Margaret of BLOIS-CHAMPAGNE _+
                         |                          m 1255                      
 _Frederick IV METZ _____|
| (1282 - 1329)          |
|                        |                        ______________________________
|                        |                       |                              
|                        |_Isabel of RUMIGNY ____|
|                          (1263 - 1326) m 1278  |
|                                                |______________________________
|                                                                               
|
|--Margaret of METZ 
|  (.... - 1376)
|                                                 _Rudolf I HABSBURG ___________+
|                                                | (1218 - 1291)                
|                         _Albert I HABSBURG ____|
|                        | (1255 - 1308)         |
|                        |                       |_Gertrude of HOHENZOLLERN ____+
|                        |                         (1225 - 1280)                
|_Elisabeth of HABSBURG _|
  (1285 - 1353)          |
                         |                        ______________________________
                         |                       |                              
                         |_Elizabeth of GORIZIA _|
                           (1262 - 1312)         |
                                                 |______________________________