_Ferdinand II IVREA _____+
                                                   | (1137 - 1187) m 1165    
                             _Alfonso IX IVREA ____|
                            | (1171 - 1230)        |
                            |                      |_Urraca of BURGUNDY _____+
                            |                        (1148 - 1211) m 1165    
 _Alfonso IVREA ____________|
| (1202 - 1271)             |
|                           |                       _Alfonso VIII IVREA _____+
|                           |                      | (1155 - 1214)           
|                           |_Berengaria of IVREA _|
|                             (1179 - 1246)        |
|                                                  |_Eleanor of PLANTAGENET _+
|                                                    (1161 - 1214)           
|
|--Maria of IVREA 
|  (1265 - 1321)
|                                                   _________________________
|                                                  |                         
|                            ______________________|
|                           |                      |
|                           |                      |_________________________
|                           |                                                
|_Mayor Alfonso of MENESES _|
  (1230 - 1265)             |
                            |                       _________________________
                            |                      |                         
                            |______________________|
                                                   |
                                                   |_________________________