Isabel d'Aragó, comtessa consort d'Urgell

-https://en.wikipedia.org/wiki/Isabella_of_Aragon,_Countess_of_Urgell

His last marriage, in 1377 in Barcelona, was to Sibila of Fortià (?-1406), who bore him a son and a daughter:

Alfonso (1378 – died young).

Isabella (1380–1424), who married her cousin James (Jaime), Count of Urgell.

James II of Urgell

From Wikipedia, the free encyclopedia

he had married Isabel, daughter of Peter IV of Aragon and brother of Martin the Humane, who appointed him lieutenant of the Kingdom of Aragon in 1408.

James had fostered four daughters and one son. His eldest child, Elisabet (or Isabel, 1409–1430), married Peter, Duke of Coimbra, in 1428. His second child, Elionor (or Leonor, 1414–1438), married Raimon Orsini in 1436. His third child, Joana (or Joanna, 1415–1445), married John I of Foix in 1435 and then married Joan Ramon Folc III de Cardona in 1445. His only son was his fourth child: Philip (or Felip), who died around 1422 while still young. James' youngest child was Catherine (or Caterina), who also died young not long after Philip (c.1424).