But while he was working in Genoa, the fancy came to him to fetch his wife from Rome, and so he bought a house in Pisa, being pleased with that city and half thinking of choosing it as his place of habitation when old age should come upon him. Now at that time the Warden of the Duomo at Pisa was M. Antonio di Urbano, who had a very great desire to embellish that temple, and had already caused a beginning to be made with some very beautiful ornaments of marble for the chapels of the church, which had been executed by the hand of Stagio da Pietrasanta, a very able and well practised carver of marble: removing some old, clumsy, and badly proportioned chapels that were there. Having thus made a beginning, the Warden proposed to fill up those ornaments in the interior with altar-pieces in oils, and on the outer side with a series of scenes in fresco and decorations in stucco, by the hands of the best and most excellent masters that he could find, without grudging any expense that might be incurred. He had already set to work on the sacristy, which he had placed in the great recess behind the high-altar, and there the ornamentation of marble was already finished, and many pictures had been painted by the Florentine painter Giovanni Antonio Sogliani, the rest of which, together with the altar-pieces and the chapels that were wanting, were finished many years afterwards by order of M. Sebastiano della Seta, the Warden of the Duomo in those days. At that time Perino returned from Genoa to Pisa, and, having seen that beginning, at the instance of Battista del Cervelliera, a person well conversant with art and a most ingenious master of wood-carving, perspective, and inlaying, he was presented to the Warden. After they had discoursed together on the subject of the works of the Duomo, Perino was asked to paint an altar-piece for an ornament immediately within the ordinary door of entrance, the ornamental frame being already finished, and above that a scene of S. George slaying the Dragon and delivering the King's Daughter. Perino therefore made a most beautiful design, which included a row of children and other ornaments in fresco between one chapel and the other, and niches with Prophets and scenes of various kinds; and this design pleased the Warden. And so, having made the cartoon for one of them, the first one, that opposite to the door mentioned above, he began to execute it in colour, and finished six children, which are very well painted. He was to have continued this right round, which would have made a very rich and very beautiful decoration; and the whole work together would have proved to be something very handsome. But he was seized with a desire to return to Genoa, where he had involved himself in love affairs and other pleasures, to which he was inclined at certain times: and on his departure he gave to the Nuns of S. Maffeo a little altar-piece that he had painted for them in oils, which is now in their possession in the convent.