Camerarius, Bartolomeo, an Italian theologian, born at Benevento, was for twenty-four years professor of law at Naples, at the end of which time, viz., in 1529, he was made president of the royal chamber. In 1557 he settled at Rome, where pope Paul IV appointed him commissary-general of the papal troops. He died at Naples in 1564. He was a man of vast learning, and wrote, De Praedestinatione, de Gratia et Libenro Arbitrio, contra Calvimum (Paris, 1556): — De Jejunio, de Oratione et Elemosind (ibid. eod. 4to): — De Purgatorio Igne (Rome, 1557): — a work on preaching, and another on matrimony. See Landon, Eccles. Dict. s.v.; Hoefer, Nouv. Biog. Generale, s.v.