The commissioner informed the governor that he was a prisoner of the Holy Office. He was taken to the convent of the Augustinians. Here he was kept in chains until he could be sent to Mexico, to appear before the Tribunal there. The government in Mexico annulled the arrest of the commissioner, but Salcedo died at sea on the return of the vessel to the Philippines in 1669. Colonization of the Ladrone Islands.--In 1668 a Jesuit mission under Padre Diego Luis de Sanvítores was established on the Ladrones, the first of the many mission stations, both Roman Catholic and Protestant, in the South Pacific. The islands at that time were well populated and fertile, and had drawn the enthusiasm of Padre Sanvítores in 1662 when he first sailed to the Philippines. The hostility of the Manchus in China, the Japanese persecutions, and the abandonment of Mindanao had closed many mission fields, and explains the eagerness with which the Jesuits sought the royal permission to Christianize these islands, which had been so constantly visited by Spanish ships but never before colonized. With Padre Sanvítores and his five Jesuit associates were a number of Christian Filipino catechists. Settlement of Guam.--The mission landed at Guam, and was favorably received. Society among these islanders was divided into castes. The chiefs were known as chamorri, which has led to the natives of the Ladrones being called "Chamorros." A piece of ground was given the Jesuits for a church at the principal town called Agadna (Agaña), and here also a seminary was built for the instruction of young men. The queen regent of Spain, Maria of Austria, gave an annual sum to this school, and in her honor the Jesuits changed the name of the islands to the Marianas. The Jesuits preached on eleven inhabited islands of the group, and in a year's time had baptized thirteen thousand islanders and given instruction to twenty thousand. Troubles with the Natives at Guam.--This first year was the most successful in the history of the mission. Almost immediately after, the Jesuits angered the islanders by compulsory conversions. There were quarrels in several places, and priests, trying to baptize children against the wishes of their parents, were killed. In 1670 the Spaniards were attacked, and obliged to fortify themselves at Agaña. The Jesuits had a guard of a Spanish captain and about thirty Spanish and Filipino soldiers, who, after some slaughter of the natives, compelled them to sue for peace. The conditions imposed by the Jesuits were that the natives should attend mass and festivals, have their children baptized, and send them to be catechised. The hatred of the natives was unabated, however, and in 1672 Sanvítores was killed by them. His biographer claims that at his death he had baptized nearly fifty thousand of these islanders. [75]