_Alfonso X IVREA _______+ | (1221 - 1284) _Ferdinand of CERDA _| | (1255 - 1275) | | |_Violant of BARCELONA __ | (1236 - 1301) _Alfonso of CERDA ___| | (1270 - 1333) | | | _Louis IX CAPET ________+ | | | (1214 - 1270) | |_Blanche of CAPET ___| | (1253 - 1323) | | |_Margaret of BARCELONA _+ | (1221 - 1295) | |--Margarita of CERDA | | ________________________ | | | _____________________| | | | | | |________________________ | | |_Matilde of BRIENNE _| | | ________________________ | | |_____________________| | |________________________