Giocondo, Giovanni an eminent Italian architect and engineer, was born at Verona in 1435, went to Rome when quite young, and studied with great attention the models of antiquity. After the death of Bramante, at Rome, he was declared architect of St. Peter's. By this work, and many others, he gained great fame. He died at a very advanced age. See Hoefer, Nouv. Biog. Generale, s.v.; Spooner, Biog. Hist. of the Fine Arts, s.v.