_Ferdinand IV IVREA ____________+ | (1285 - 1312) _Alfonso XI BURGUNDY _| | (1311 - 1350) m 1328 | | |_Constanza Dinisez of BURGUNDY _ | (1289 - 1313) _Peter IVREA ________| | (1334 - 1368) | | | _Afonso IV BURGUNDY ____________+ | | | (1290 - 1357) | |_Maria of BURGUNDY ___| | (1312 - 1356) m 1328 | | |_Beatrice of IVREA _____________+ | (1292 - 1359) | |--Constance of IVREA | (1354 - 1393) | ________________________________ | | | ______________________| | | | | | |________________________________ | | |_Maria DE PADILLA ___| | | ________________________________ | | |______________________| | |________________________________