Note 4 — Chapter XII · Progress and Revolution. 1837–1897.

Treaty with the Sultan of Jolo.—A few months later the governor of Zamboanga concluded a treaty with the sultan of Jolo by which the archipelago was to be considered an incorporated part of the Spanish possessions. The sultan bound himself to make no further treaties with or cessions to foreign powers, to suppress piracy, and to fly the Spanish flag. The Moros were guaranteed the practice of their religion, the succession of the sultan and his descendants in the established order, boats of Jolo were to enjoy the same trading privileges in Spanish ports as other Filipino vessels, and the sultan retained the right to all customs duties on foreign trading-vessels. Finally, “in compensation for the damages of war,” the sultan was to be paid an annual subsidy of 1,500 pesos and 600 pesos each to three datos and 360 pesos to a sherif.4