Santa Maria del Popolo
The architect or architects of this innovative project remain unknown due to a lack of contemporary sources. Giorgio Vasari in his "Lives" attributed all the important papal projects in Rome during Sixtus IV to a Florentine, Baccio Pontelli including the basilica and monastery of Santa Maria del Popolo. Modern researchers deemed this claim highly dubious and proposed other names among them Andrea Bregno, a Lombard sculptor and architect whose workshop certainly received important commissions in the basilica. The fundamental differences between the façade and the interior suggest that maybe more than one architect was working on the building.
Santa Maria del Popolo
The nave ends with a triumphal arch that is decorated with a sumptuous stucco group which was created during the Berninian reconstruction. The papal coat of arms of Alexander VII is seen in the middle flanked by two angel-like "Victories" holding palm branches who repose on rich garlands of flowers. This group is the work of Antonio Raggi. It should be noted the nave and the transept had a more unified Baroque appearance before the purist restoration of Antonio Muñoz in 1912. He removed the thick plaster coat from the shafts of the travertine half-columns that was painted to create an appearance of cipollino marble. Another lost Baroque feature was created by Giovanni Maria Mariani whose name was mentioned regularly in the payments between 1657 and 1658. It is not possible to reconstruct his work in the basilica but he was a specialist of sumptuous ornamental friezes with great figures, festoons and grisailles. Presumably he was tasked with the seamless integration of the real and painted sculpture in the nave and the transept.