Background
He was born and active mainly in Siena, Italy.
He was born and active mainly in Siena, Italy.
He began as a sculptor for the Duomo of Siena, and worked there alongside Jacopo della Quercia. In 1448, he rose to Capomaestro dell"Opera del Duomo, working with Pietro di Tommaso del Minella. Among his work at the Cathedral of Siena is the marble intarsio design of the Erythraean Sibyl (1482).
He was also Capomaestro for the Cathedral of Orvieto.
He designed the Palazzo delle Papesse and the nearby Loggia del Papa (1462-1463). He may have contributed to the design of Santa Maria delle Nevi.