Antonio da Sangallo the Younger

Antonio da Sangallo the Younger (12 April 1484- 3 August 1546) was an Italian architect during the Renaissance. He mainly worked in Rome and the Papal States.
Vasari writes about him in his book, "Lives of the Most Excellent Painters, Sculptors, and Architects."
Antonio da Sangallo the Younger was an apprentice under Donato Bramante. He was involved in the designing and building process of St. Peter's Basilica from 1513 until at least 1536.