Francesco di Giorgio
The architect of the basilica, like that of the Palace of the Chancellery, is unknown. The design of the Palace has been attributed to Francesco di Giorgio Martini and Baccio Pontelli, while Filippo Titi suggests Donato Bramante and other authors have cited Giuliano da Sangallo and Andrea Bregno. Titi also independently attributed reconstruction of the basilica to Bramante. The last restoration was necessary after a fire damaged the basilica in 1944.