_Balian of IBELIN ___+
                                            | (1143 - 1193)       
                       _John I IBELIN ______|
                      | (1179 - 1236)       |
                      |                     |_Maria of KOMNENOS __+
                      |                       (1154 - 1217)       
 _Guy of IBELIN ______|
| (1220 - 1255)       |
|                     |                      _____________________
|                     |                     |                     
|                     |_Melisende of ARSUF _|
|                       (1177 - ....)       |
|                                           |_____________________
|                                                                 
|
|--Alix of IBELIN 
|  (1250 - ....)
|                                            _____________________
|                                           |                     
|                      _____________________|
|                     |                     |
|                     |                     |_____________________
|                     |                                           
|_Philippa BARLAIS ___|
  (1220 - ....)       |
                      |                      _____________________
                      |                     |                     
                      |_____________________|
                                            |
                                            |_____________________