 By then, Badar ud-Din, Sultan of Sulu, wo was keenly interested in developing commercial ties with Manila and China, approached the Spanish with a proposal of peace.According to the agreement they arrived at in 1726, the Spanish and Sulu were permitted to trade freely with each other and the Island of Basilan was ceded to Spain.However, in a series of raids on the Visayas, subjects of the Sultan broke the treaty which resulted in the renewal of large-scale hostilities by 1730.