_Ferdinand III IVREA _______+
                                                  | (1199 - 1252) m 1219       
                       _Alfonso X IVREA __________|
                      | (1221 - 1284)             |
                      |                           |_Elisabeth of HOHENSTAUFEN _+
                      |                             (1204 - 1235) m 1219       
 _Sancho IV IVREA ____|
| (1258 - 1295)       |
|                     |                            ____________________________
|                     |                           |                            
|                     |_Violant of BARCELONA _____|
|                       (1236 - 1301)             |
|                                                 |____________________________
|                                                                              
|
|--Ferdinand IV IVREA 
|  (1285 - 1312)
|                                                  _Alfonso IX IVREA __________+
|                                                 | (1171 - 1230)              
|                      _Alfonso IVREA ____________|
|                     | (1202 - 1271)             |
|                     |                           |_Berengaria of IVREA _______+
|                     |                             (1179 - 1246)              
|_Maria of IVREA _____|
  (1265 - 1321)       |
                      |                            ____________________________
                      |                           |                            
                      |_Mayor Alfonso DE MENESES _|
                        (1230 - 1265)             |
                                                  |____________________________