Sangallo (säng-gälˈlō) [key], three Italian Renaissance architects, two brothers and their nephew. Giuliano da Sangallo, 1445–1516, designed the Church of Santa Maria delle Carceri at Prato and palaces in Florence. After Bramante's death Giuliano worked on St. Peter's in Rome with Raphael and Fra Giocondo. He was a late follower of Brunelleschi, interested in clarity and elegance of form. His brother, Antonio da Sangallo, the elder, 1455–1534, moved from reminiscences of Giuliano's manner to a High Renaissance massiveness, seen in the domed Church of the Madonna di San Biagio at Montepulciano. Antonio da Sangallo, the younger, 1485–1546, their nephew, whose real name was Antonio Cordiani, was the most noted of the three. He collaborated with Bramante in the latter's final years. For Cardinal Alessandro Farnese (later Pope Paul III) he designed the Farnese Palace, the architectural epitome of Roman Renaissance palaces. After Raphael's death Antonio was appointed (1520) to succeed him in the construction of St. Peter's, although his complex plan for its completion was not accepted. At the Vatican he designed the Sala Regia and the Pauline Chapel. He developed a severe, logical, and weighty style.