Battle of Cape St. Vincent (1337) Seville in July 1339, mediated by Maria of Portugal. Among the treaty's provisions was a commitment by Afonso IV of Portugal to assist Alfonso XI of Castile against an impending Marinid invasion force, then assembling in Morocco. This would culminate in the Battle of Río Salado in October 1340. Battle of Cape St. Vincent (1337) The Battle of Cape St Vincent of 1337 took place on 21 July 1337 between a Castilian fleet commanded by Alfonso Jofre Tenorio and a Portuguese fleet led by the Luso-Genoese admiral Emanuele Pessagno (Manuel Pessanha). The fledgling Portuguese fleet was defeated, bringing a quick
John Jervis, 1st Earl of St Vincent vessels, the Battle of Cape Saint Vincent became celebrated as an outstanding victory and the awards and recognition far outweighed the achievement. The bad news of the evacuation of the Mediterranean, the capitulation of the Spanish and the Italian city-states and the defeat of the Austrian army alongside the increasing threat of a French invasion of Britain had depressed the politicians and general public. A victory, such as that of Cape Saint Vincent, was more important for the morale of the country as a whole than its military ramifications. Both Jervis and Nelson were hailed as heroes and Jervis was