On the wall to the left of the Holy Door is the spectacular monument to Agostino Favoriti, (1685) by Filippo Carcani from a design by Ludovico Gimignani. The cardinal is shown sitting at a desk with drapery partly concealing his heraldry in marble, in front of a large triangle in Siena marble. The desk is on a plinth in verde antico, and this is in turn on a concave plinth in red jasper flanked by a pair of pedestals. On the latter are large allegorical figures of Fortitude (with the lion) and Religion. A putto with a book is also in attendance. The plinths have reliefs of musical instruments.