Within the first few years several more Augustinian fathers [63] arrived whose linguistic accomplishments are briefly noted by the historians, but while these men were certainly pioneers in the speaking of Tagalog and Chinese, they are not recorded as having written in the language. According to Cano, [64] the first Tagalog grammar was written by Agustin de Alburquerque, and Retana [65] considered him one of the possible authors of the present Doctrina. This friar reached the Philippines in 1571, accompanied Rada on his second expedition to China in 1576, was elected provincial in 1578, and died in 1580. However, there is no early record saying that Alburquerque wrote any linguistic work. The statement was not made until the 19th century, and in contradiction Juan de Medina, who wrote in 1630, said that Juan de Quinones "made a grammar and lexicon of the Tagal language, which was the first to make a start in the rules of its mode of speech." [66] Furthermore, in the official acts [67] of the Augustinian province we find that on August 20, 1578 Alburquerque as provincial of the order commissioned Quinones to write a grammar, dictionary and confessionary in the Tagalog language. The conclusions of Santiago de Vela [68] are that it is doubtful that Alburquerque wrote any linguistic works, and if he did they were liable to have been rough preliminary studies [69] upon which the texts of Quinones were based. In view of the lack of positive contemporary evidence [70] we believe that Alburquerque may be eliminated except as the instigator of such works, and we return again to Juan de Quinones. In so far as Quinones [71] was the author of a grammar and dictionary claimed to have been printed at Manila in 1581, we have shown what various writers have said, and though we must conclude that the work was probably not printed, it is certain that he wrote in the Tagalog language. Agustin Maria de Castro [72] said, although no earlier writers support it, that Quinones actually presented a grammar, dictionary and Doctrina in Tagalog at the Synod of 1582 for its approval. Our total information about this Augustinian linguist boils down to these essentials: that he did write a grammar and dictionary of Tagalog about 1578-81, which may have been the earliest written in the Philippines; that he may have presented these and a Doctrina at the Synod of 1582 which approved Juan de Plasencia's works; that there is no concrete evidence that any of these works were printed; and that Quinones' works which were extant in manuscript in 1593 might have been consulted in the preparation of the present Doctrina. Another member of the Order of St. Augustine who might have been able to participate in the editing of the 1593 Doctrinas was Diego Munoz. Munoz came to the islands in 1578, and died in 1594. Of him San Agustin writes: