 At the battle of Rio Salado he successfully fought against a Marinid invasion from Morocco in 1340, and at the taking of Algeciras in 1344 he led the armed levy of his archbishopric.As Archbishop of Toledo he held two reform synods; one at Toledo in May 1339, the other at Alcalá in April 1347.In 1343 he had been sent to Pope Clement VI at Avignon to negotiate a grant of a tax on the revenues of the Church for the Crusade.