Henry of Castile son of Alfonso VIII of Castile, died young (1288–1299) Parents Alfonso VIII of Castile Eleanor of England Children Siblings Eleanor of Castile Constance of Castile Berengaria of Castile Henry I of Castile Blanche of Castile Ferdinand of Castile Mafalda de Castilla Sancha of Castile Sancho of Castile Urraca of Castile