[1] While the Spanish court focused their Italian resources on the concurrent War of the Montferrat Succession, Osuna received the task of keep a watch on Muslim navies.

While the spy ships captured two Barbary privateers and sank four in the African coasts, Osuna sent Leyva in combination with fleets of the Order of Malta and the Grand Duchy of Tuscany to carry supply for the Christian rebels against Ottoman rule in Morea.

[5] Rivera captured two unrelated pirates on the way and headed for La Goulette, the fortress guarding the entry to the lake of Tunis, after learning the wanted corsairs would have taken refuge in it.

[6] The San Juan had received multiple hits, and one of the captured ships, more exposed to the enemy fire, sank, but Rivera returned with all the rest to Trapani, with only 3 dead and 30 wounded men.

[5] The action was celebrated in Sicily, with the Duke of Osuna immediately commending Rivera to be promoted to captain, which was granted, although the court refused to give him any further reward.