He had as usual numerous quarrels, and falling into disfavor with Madame d'Estampes, the King's favorite, he suddenly left Paris and returned alone to Florence. The remainder of his life he passed mainly in the service of Duke Cosimo de' Medici. The chapters of his narrative dealing with this portion give a most vivid picture of artist life at an Italian court in the sixteenth century. To this third and last period belongs the work on which his fame as sculptor rests, the bronze Perseus holding the head of Medusa, completed in 1554 and still standing in the Loggia de' Lanzi in Florence. It is a typical monument of the Renaissance, and was received with universal applause by all Italy. Odes and sonnets in Italian, Greek, and Latin were written in its praise. His minute description of its casting, and of his many trials during that process, are among the most interesting passages of the narrative. In 1558 he began to write his memoirs, dictating them for the greater part to an amanuensis; and he carried them down to the year 1562. The events of the remaining nine years of his life are to be gathered from contemporary documents. In 1558 he received the tonsure and first ecclesiastical orders, but married two years later, and died in 1571. He was buried with great pomp in the Church of the Annunciata in Florence. Besides his 'Memoirs' he also wrote treatises on the goldsmith's art and on sculpture, with especial reference to bronze-founding. They are of great value as manuals of the craftsmanship of the Renaissance, and excellent specimens of good Italian style as applied to technical exposition. And like all cultivated artists of his time Cellini also tried his hand at poetry; but his lack of technical training as a writer comes out even more in his verse than in his prose. The life of Benvenuto was one of incessant activity, laying hold of the whole domain of the plastic arts: of restless wanderings from place to place; and of rash deeds of violence. He lived to the full the life of his age, in all its glory and all its recklessness. As the most famous goldsmith of his time, he worked for all the great personages of the day, and put himself on a footing of familiar acquaintance with popes and princes. As an artist he came into contact with all the phases of Italian society, since a passion for external beauty was at that time the heritage of the Italian people, and art bodied forth the innermost life of the period. Furniture, plate, and personal adornments were not turned out wholesale by machinery as they are to-day, but engaged the individual attention of the most skilled craftsmen. The memory and the traditions of Raphael Sanzio were still cherished by his pupils when Cellini first came to Rome into the brilliant circle of Giulio Romano and his friends; Michelangelo's frescoes were studied with rapturous admiration by the young Benvenuto, and later on he proudly recorded some words of praise of the mighty genius whom he worshiped; and at