_Boris I KRUM ________+
                                                     | (.... - 0907)        
                             _Simeon I KRUM _________|
                            | (0864 - 0927)          |
                            |                        |_Maria of UNKNOWN ____
                            |                                               
 _Peter I KRUM _____________|
| (.... - 0969) m 0927      |
|                           |                         ______________________
|                           |                        |                      
|                           |_Maria SURSUVUL ________|
|                                                    |
|                                                    |______________________
|                                                                           
|
|--Boris II KRUM 
|  (0932 - 0977)
|                                                     _Romanos I LEKAPENOS _+
|                                                    | (0870 - 0948)        
|                            _Christopher LEKAPENOS _|
|                           | (0890 - 0931)          |
|                           |                        |_Theodora of UNKNOWN _
|                           |                          (.... - 0921)        
|_Maria-Irene of LEKAPENOS _|
  (.... - 0967) m 0927      |
                            |                         ______________________
                            |                        |                      
                            |_Sophia of UNKNOWN _____|
                                                     |
                                                     |______________________