We have now traced Arnolfo's training through three or four of the chief lodges, and always under the best Masters. It is then no marvel that by 1294 his fame had risen so high that he was chosen as architect of the Duomo of Florence. He was well known to the Florentines, his master, Jacopo Tedesco, otherwise Lapo, having left Colle to settle in Florence, where he was engaged to build the Palace of the Podestà (Bargello). And this brings us to the vexed question of the parentage of Arnolfo. Vasari says that Jacopo or Lapo, whom he calls "il Tedesco" (meaning Lombard architect), was the father of Arnolfo, and he gives this as a certain fact, understood to be the case by the world in general for two or three centuries past. Milanesi, on the strength of the document quoted above, "Secum ducat Senas Arnolphum et Lapum suos discipulos," says that Lapo was only Arnolfo's contemporary and fellow-pupil. [Illustration: MONUMENT TO CARDINAL DE BRAYE. BY MAGISTER ARNOLFO. _See page 314._] But neither Vasari nor Milanesi seem to reflect that there might have been two Lapi. Certainly, if two youths are fellow-disciples of one Master, it is not probable that the senior should be the son of the other. On the other hand, if "Jacopo il Tedesco," said to be Arnolfo's father, was elected head architect at Assisi in 1228, how could he have been a young pupil of Niccolò di Pisa in 1266? Recognizing these difficulties, Milanesi sets out in search of a father for Arnolfo, in place of Lapo, his fellow-pupil. He comes across a document in the archives of the "Riformazione" of Florence, dated MCCC. Aprile 1, where the privileges of citizenship are accorded to "Magistrum Arnolphum de Colle, filium olim Cambij."[239] In quoting this, Gaye[240] says that in spite of it the Florentines will persist in calling Arnolfo the son of Lapo. Now cannot these conflicting facts be reconciled? It is a strange fact that in no other Florentine deed except this one privilege is any sign of parentage given to Arnolfo. He is so enveloped in the greatness of being _caput magister_, and the greatest architect of his day, that his parentage seems to be lost sight of, though the universal custom of the day was to cite the father's name as well as the son's in a document. Therefore, though we have never before heard the surname of Jacopo il Tedesco, there is no reason in the world why it should not be Cambi. By the time Arnolfo was grown up, Jacopo Tedesco had lived many years in Florence; he therefore, having become a Florentine citizen, may have taken office and might have been connected with the Cambio, or Exchange there, taking his name from that office, as a large family of Cambi during the Republic seems to have done.