_William II WEIMAR ________+
                                            | (0930 - 1003)             
                       _Poppo I WEIMAR _____|
                      | (.... - 1044)       |
                      |                     |___________________________
                      |                                                 
 _Ulric I of WEIMAR __|
| (.... - 1069)       |
|                     |                      ___________________________
|                     |                     |                           
|                     |_Hadamut of UNKNOWN _|
|                                           |
|                                           |___________________________
|                                                                       
|
|--Richardis of WEIMAR 
|  
|                                            _Vazul ÁRPÁD ____________+
|                                           | (0995 - 1031)             
|                      _Béla I ÁRPÁD ____|
|                     | (1015 - 1063) m 1033|
|                     |                     |___________________________
|                     |                                                 
|_Sophia of ÁRPÁD __|
  (1050 - 1095)       |
                      |                      _Mieszko II Lambert PIAST _+
                      |                     | (0990 - 1034)             
                      |_Richeza of PIAST ___|
                        (1013 - 1075) m 1033|
                                            |_Richeza of EZZON _________
                                              (0995 - 1062)