This chapel was granted by Pope Julius II to a wealthy Sienese banker Agostino Chigi in 1507 for his mortuary chapel. Chigi commissioned Raphael to design the chapel. He designed the entire chapel as a single piece of architecture. Work on the chapel was interrupted in 1520 by the deaths of both Raphael and Agostino. Work on the unfinished chapel resumed in the 1550s when Salviati frescoed the drum and the lunettes. It was only completed by Bernini between 1652 and 1656 for Cardinal Fabio Chigi, the future Pope Alexander VII.