Sebastiano Luciani, called, after he went to Rome, in 1511, Sebastiano Veneziano and, later, Fra Sebastiano del Piombo, from his appointment, in 1531, as keeper of the papal seal (Piombo). Venetian School. Born c. 1485; died 1547. According to Vasari he studied first under Giovanni Bellini and then under Giorgione, on whom he modeled his early style. In Rome, where he remained most of his life after 1511, he gradually changed his style, under the influence of Raphael and Michelangelo.