The rebel Dutch arms derived no better success in the undertakings that they had attempted during those times in Joló and Zamboanga, guided by the chief Salicala (who was hostile to the Spaniards), and bribed by a rich present of amber and pearls so that, the Joloans being protected by their favor, the Dutch could take Joló as their own, and the Joloans would not try to look for a better opportunity for safety. The Dutch sent two well armed war-galleons from Batavia, so that they might have more than enough forces to oppose the few Spanish forces of whom Salicala had informed them. They reached Joló in the middle of July, 1648, and after having dug their trenches they demanded the surrender of the place from the sargento-mayor, Esteban de Orella Ugalde, a brave Biscayan, who was governing that fort. He was given a limit of four hours, but he replied with so great valor, showing his intention to defend the fort, that the Dutch began to bombard it with three pieces of artillery, on the twenty-seventh of the said month. Our fortress, although small, played its artillery too, so successfully that many of the Dutchmen were killed, and among them the admiral of the expedition. The bombardment lasted for three days, but their shots were unable to demolish our forts, although these were so weak that our men afterward destroyed them with clubs. The Joloan Moros, seeing the lack of advantage gained by their allies, grew mistrustful of their patronage; and the Dutch withdrew, tired and angry. The peace made by Don Francisco de Atienza with the king of Jolo followed that attack; and on that pretext the fort was demolished and the Spaniards retired, as it was a useless undertaking and one of no advantage.