Interior view of the dome (detail)

The chancel's dome supported on pendentives, the articulation of grey pietra serena against white plaster and the four tondo reliefs of the Evangelists in the spandrels all derive from Brunelleschi's Old Sacristy in San Lorenzo, Florence. The small full-length angels that support the roundels resemble putti carved by Antonio Rossellino, further corroborating Pietro's preoccupation with Florentine models early in his career.