__________________________
                                              |                          
                       _______________________|
                      |                       |
                      |                       |__________________________
                      |                                                  
 _Mitso ASEN _________|
| (.... - 1278)       |
|                     |                        __________________________
|                     |                       |                          
|                     |_______________________|
|                                             |
|                                             |__________________________
|                                                                        
|
|--Ivan III ASEN 
|  (1259 - 1303)
|                                              _Ivan I ASEN _____________+
|                                             | (.... - 1196) m 1183     
|                      _Ivan II ASEN _________|
|                     | (1190 - 1241)         |
|                     |                       |_Helen of UNKNOWN ________
|                     |                          m 1183                  
|_Maria of ASEN ______|
                      |
                      |                        _Theodore KOMNENOSDOUKAS _+
                      |                       | (1180 - 1253)            
                      |_Irene KOMNENOSDOUKAS _|
                                              |
                                              |_Maria PETRALIPHAS _______