_____________________
                                               |                     
                         _Theodore VATATZES ___|
                        |  m 1131              |
                        |                      |_____________________
                        |                                            
 _Alexios VATATZES _____|
|                       |
|                       |                       _John II KOMNENOS ___+
|                       |                      | (1087 - 1143) m 1104
|                       |_Eudokia of KOMNENOS _|
|                         (1116 - 1150) m 1131 |
|                                              |_Piroska of ÁRPÁD _+
|                                                (1088 - 1134) m 1104
|
|--Isaac Komnenos VATATZES 
|  (.... - 1196)
|                                               _____________________
|                                              |                     
|                        ______________________|
|                       |                      |
|                       |                      |_____________________
|                       |                                            
|_Maria of PEGONITISSA _|
                        |
                        |                       _____________________
                        |                      |                     
                        |______________________|
                                               |
                                               |_____________________