In the matter of the Latin translation we are on somewhat more certain ground. John of Spain in the first half of the twelfth century seems to have translated only the medical portion.[847] Manuscripts of this partial translation are relatively few,[848] and it was presently superseded by the complete translation made either in the twelfth or early thirteenth century[849] by Philip, “the least of his clerics” for “his most excellent lord, most strenuous in the cult of the Christian religion, Guido of Valencia, glorious pontiff of the city of Tripoli.” Philip goes on to say in his dedicatory preface that it was when he was with Guido in Antioch that they found “this pearl of philosophy, ... this book which contains something useful about almost every science,” and which it pleased Guido to have translated from Arabic into Latin. Although the various printed editions and manuscripts of _The Secret of Secrets_ in Latin vary considerably, they regularly are preceded by this ascription of the Latin translation to Philip, and usually by the other prologues afore-mentioned. Who this Philip was, other than a cleric of Tripoli, is still undetermined. If he was the same as the papal physician whom Alexander III in 1177 proposed to send on a mission to Prester John,[850] he had probably made his translation before that date. J. Wood Brown would identify him with Philip of Salerno, a royal notary whose name appears in 1200 on deeds in the kingdom of Sicily.[851] I have already suggested that possibly he translated the _Kiranides_. [Sidenote: Philip’s preface.]