_Ferdinand III IVREA __________+
                                                     | (1199 - 1252) m 1219          
                           _Manuel IVREA ____________|
                          | (1234 - 1283)            |
                          |                          |_Elisabeth of HOHENSTAUFEN ____+
                          |                            (1204 - 1235) m 1219          
 _John Manuel IVREA ______|
| (1282 - 1348)           |
|                         |                           _Amadeus IV SAVOY _____________+
|                         |                          | (1197 - 1253) m 1244          
|                         |_Beatrice of SAVOY _______|
|                           (1250 - 1292)            |
|                                                    |_Cecilia of BAUX ______________
|                                                      (1230 - 1275) m 1244          
|
|--Constanza Manuel of IVREA 
|  (1315 - ....)
|                                                     _Peter III BARCELONA __________+
|                                                    | (1239 - 1285) m 1262          
|                          _James II BARCELONA ______|
|                         | (1267 - 1327)            |
|                         |                          |_Constance II of HOHENSTAUFEN _+
|                         |                            (1249 - 1302) m 1262          
|_Constance of BARCELONA _|
  (1300 - 1327)           |
                          |                           _Charles II ANJOU-NAPLES ______+
                          |                          | (1254 - 1309)                 
                          |_Blanche of ANJOU-NAPLES _|
                            (1280 - 1310)            |
                                                     |_Mary of ÁRPÁD ______________+
                                                       (1257 - 1323)