By 1277 Arnolfo seems to have graduated, for when Niccolò and Giovanni di Pisa were at work on the beautiful fountain at Perugia in that year, Fra Bevignate, the _soprastante_ of the work, sent to call Magister Arnolfo from Florence to assist in the sculpture of the fountain. Arnolfo, however, declared in a letter dated Aug. 27, 1277, that he could not go to Perugia, or undertake any work there without the consent of King Charles of Anjou (King of Naples and Sicily) or of Hugo, his vicar in Rome. King Charles was applied to, and on Sept. 10 of that year he wrote conceding permission to Arnolfo to go and assist his old master--then 74 years of age--and also to take the marbles necessary.[237] These documents are very valuable apart from the fact they chronicle. They show how the guild was not only privileged by the reigning monarch, but that he was the active president of it. It explains all those queer words on Longobardic inscriptions, beginning--"In tempore Dominus Honorius Episcopus," "In tempore præsule Paschalis, etc.," showing that they point out the reigning king, pope, or patron bishop who was at the time president of the Great Guild. The name of this highest magnate is usually followed in these inscriptions by the Grand Master, _soprastante_ or _operaio_ of the special lodge. The universality of the guild is also shown; its president, the king, being at Naples, his "vice" at Rome. The next place in which we see Arnolfo is in Rome, where he worked with his _socio_ (fellow Freemason), Pietro, at the tabernacle of San Paolo fuori le mura. Here, with this ancestor of the Cosmati, Arnolfo learned his love of polychrome sculpture, which he afterwards adapted to the larger uses of architecture; for his grand Florentine Dome seems only a magnified inlaid casket. There is a beautiful piece of inlaid work in the Opera del Duomo which I believe to have been the _pluteus_ or parapet of the tribune in Arnolfo's time. It is in the Cosmatesque work which Arnolfo often executed. That he was as apt a pupil of the Cosmatesque revival of the _opus Alexandrinum_ as he had been of Niccolò's figure sculpture, and his father Jacopo's architecture, is evident by his tomb of Cardinal de Braye at Orvieto, where we next find him working in 1285.[238] The tomb is a beautiful mixture of Cosmatesque ornamentation with the legitimate sculpture which he had learned from Niccolò. The capitals of the spiral inlaid columns of the sarcophagus are of the true old Romano-Lombard form. In the simple grace of the recumbent figure we descry a forerunner of Donatello and Desiderio.