Giuliano da Sangallo was an Italian sculptor, architect and military engineer active during the Italian Renaissance. He is known primarily for being the favored architect of Lorenzo de' Medici, his patron. In this role, Giuliano designed a villa for Lorenzo as well as a monastery for Augustinians and a church where a miracle was said to have taken place. Additionally, Giuliano was commissioned to build multiple structures for Pope Julius II and Pope Leo X. Leon Battista Alberti and Filippo Brunelleschi heavily influenced Sangallo and in turn, he influenced other important Renaissance figures such as Raphael, Leonardo da Vinci, his brother Antonio da Sangallo the Elder, and his sons, Antonio da Sangallo the Younger and Francesco da Sangallo.

Antonio da Sangallo the Younger, also known as Antonio Cordiani, was an Italian architect active during the Renaissance, mainly in Rome and the Papal States. One of his most popular projects that he worked on designing is St. Peter’s basilica in the Vatican City. He was also an engineer who worked on restoring several buildings. His success was greatly due to his contracts with renowned artists during his time. Sangallo died in Terni, Italy, and was buried in St. Peter’s Basilica.