After this the Prince caused letters from himself to the Pope to be indited in the Tartar tongue,{1} and committed them to the Two Brothers and to that Baron of his own, and charged them with what he wished them to say to the Pope. Now the contents of the letter were to this purport: He begged that the Pope would send as many as an hundred persons of our Christian faith; intelligent men, acquainted with the Seven Arts,{2} well qualified to enter into controversy, and able clearly to prove by force of argument to idolaters and other kinds of folk, that the Law of Christ was best, and that all other religions were false and naught; and that if they would prove this, he and all under him would become Christians and the Church’s liegemen. Finally he charged his Envoys to bring back to him some Oil of the Lamp which burns on the Sepulchre of our Lord at Jerusalem.{3} NOTE 1.—✛ The appearance of the Great Kaan’s letter may be illustrated by two letters on so-called Corean paper preserved in the French archives; one from Arghún Khan of Persia (1289), brought by Buscarel, and the other from his son Oljaitu (May, 1305), to Philip the Fair. These are both in the Mongol language, and according to Abel Rémusat and other authorities, in the Uighúr character, the parent of the present Mongol writing. Facsimiles of the letters are given in Rémusat’s paper on intercourse with Mongol Princes, in _Mém. de l’Acad. des Inscript._ vols. vii. and viii., reproductions in J. B. Chabot’s _Hist. de Mar Jabalaha III._, Paris, 1895, and preferably in Prince Roland Bonaparte’s beautiful _Documents Mongols_, Pl. XIV., and we give samples of the two in vol. ii.[1]