Antonio da Sangallo the Younger (12 April 1484 – 3 August 1546), also known as Antonio Cordiani, was an Italian architect active during the Renaissance, mainly in Rome and the Papal States.[1] 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.[1] Sangallo died in Terni, Italy, and was buried in St. Peter’s Basilica.