fell on him in common with his uncles Celso and Camillo. Lyons and Geneva Coming of age (1561) he went to Lyon, probably engaging in mercantile business; he revisited Italy after his uncle Lelio Sozzini's death; we find him in 1562 on the roll of the Italian church at Geneva; there is no trace of any relations with Calvin. He returned next year to Lyon. The evangelical position was not radical enough for him. In his Brevis explicatio (Lyons, 1562) of the prologue to St John's Gospel he already attributes to Christ an official, not an essential, deity – already an anti-Trinitarian position; and in a letter of 1563 rejects the immortality of the soul in favour of Christian mortalism; a position subsequently developed in his disputation with the humanist Francesco Pucci. Florence Towards the end of 1563 he returned to Italy, conforming to the Roman Catholic Church, and for twelve years, as, his unpublished letters show, was in the service of Isabella de Medici, daughter of the grandduke Cosimo of Tuscany (not, as Samuel Przypkowski says, in the service of the grandduke himself). Between 1565 and 1568 he wrote the essay Il Frastagliato Intronato. This portion of his life he regarded as wasted; until 1567 he gave some attention to legal duties, and wrote (1570) his treatise De auctoritate s. scripturae. In 1571 he was in Rome, probably with his patroness. He left Italy at the end of 1575, and after Isabella's death (allegedly strangled by her husband in 1576) and declined the overtures of her brother Francesco, now grand-duke, who pressed him to return. Francesco was doubtless aware of the motive which led Sozzini to quit Italy; there is every reason to believe Samuel Przypkowski's statement that the grand-duke agreed to secure to him the income of his property so long as he published nothing in his own name. Basel Sozzini now fixed himself at Basel, gave himself to close study of the Bible, began translating the Psalms into Italian verse, and, in spite of increasing deafness, became a centre of theological debates. His discussion with Jacques Couet on the doctrine of salvation issued in a treatise De Jesu Christo servatore (finished 12 July 1578), the circulation of which in manuscript commended him to the notice of Giorgio Biandrata, court physician in Poland and Transylvania, and ecclesiastical wire puller in the interests of heterodoxy. Transylvania Transylvania for a