Henry 's plan was for Alfonso de la Cerda to become King of Leon , marrying the infanta Isabel de Castilla y de Molina , daughter of Maria de Molina and sister of Ferdinand IV .
Head entity: isabel de castilla y de molina Q167173 18 19 20 21 22 23
Tail entity: maria de molina Q266025 27 28 29
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P25