Antonio da Sangallo the Elder
Antonio da Sangallo the Elder (c. 1453 – December 27, 1534) was an Italian Renaissance architect who specialized in the design of fortifications.
Antonio da Sangallo was born at Florence.
Sangallo's father Francesco Giamberti was a woodworker. His brother Giuliano da Sangallo and nephew Antonio da Sangallo the Younger were also architects. Sangallo's godson, Giulio de Medici (the future Pope Clement VII) was raised in his household until the boy reached the age of seven, when Giulio's uncle Lorenzo the Magnificent became his full-time guardian. 
Sangallo often worked in partnership with his brother; however, he executed a number of independent works. As a military engineer he was especially skillful, building important works at Arezzo, Montefiascone, Florence and Rome. His most outstanding work as an architect is the church of San Biagio at Montepulciano, in plan a Greek cross with central dome, "the first of the great cinquecento domes to be completed". and two towers -- resembling, on a smaller scale, Bramante's design for St. Peter's Basilica.
Sangallo also built a palace in the same city, various churches and palaces at Monte San Savino, and, at Florence, a range of monastic buildings for the Servite monks. His other works includes he church of San Biagio at Montepulciano, the Forte Sangallo of Civita Castellana and the Old Fortress of Livorno. Antonio retired early from the practice of his profession, and spent his latter years in farming.
- Phyllis Williams Lehmann. "The Basilica Aemilia and S. Biagio at Montepulciano" The Art Bulletin 64.1 (March 1982:124-131).
- Wolfgang Lotz, in Ludwig Heinrich Heydenreich and Wolfgang Lotz, Architecture in Italy, 1400-1600 (1974:185).
- One or more of the preceding sentences incorporates text from a publication now in the public domain: Middleton, John Henry (1911). "Sangallo s.v. II. Antonio di Sangallo". In Chisholm, Hugh. Encyclopædia Britannica. 24 (11th ed.). Cambridge University Press. pp. 148–149.