The 16th century tomb of Giovanni Antonio Trivulzio, the Cardinal of Como (d. 1508) and Cardinal Agostino Trivulzio (d. 1548) is on a pillar of the left aisle. The tomb is a Baroque aedicula built of richly colored marbles. The base is decorated with a garland of leaves and flowers and a head with three faces, a rare representation of the Holy Trinity. The central part with the plaque of the inscription made of pietre dure is flanked by slim volutes. The yellow stone frame of the panel is decorated with a conch and a badge (a red cross in a radiating sun). The monument is crowned with an arched broken pediment and the coat-of-arms of the Trivulzio family (green and yellow stripes) but there are no busts for the deceased persons.