__
                                                 |  
                            _Andronikos DOUKAS __|
                           | (.... - 0910)       |
                           |                     |__
                           |                        
 _Constantine X DOUKAS ____|
| (1006 - 1067)            |
|                          |                      __
|                          |                     |  
|                          |_____________________|
|                                                |
|                                                |__
|                                                   
|
|--Konstantios DOUKAS 
|  (1060 - 1081)
|                                                 __
|                                                |  
|                           _____________________|
|                          |                     |
|                          |                     |__
|                          |                        
|_Eudokia MAKREMBOLITISSA _|
                           |
                           |                      __
                           |                     |  
                           |_____________________|
                                                 |
                                                 |__