 Augustinian friars made researches in the languages of the Philippine Islands including Diego Bergano, and José Sequi (d. 1844), a prominent missionary of the order who baptized 30,000 people.Many wrote grammars and compiled dictionaries.In 1575, under the leadership of Alfonso Gutierez, twenty-four Spanish Augustinians landed in the islands and, with the respective provincials Diego de Herrera and Martin de Rado, worked very successfully, at first as wandering preachers.