 In the chancel's dome are four medallions depicting Dominican saints surrounded by a multitude of putti, all possibly also by Cafà, and the fresco "The Glory of the Eternal Father" by Francesco Rosa in the lantern.The decoration of the chancel was completed in the 18th century with the marble reliefs of St Rose of Lima and St Agnes of Montepulciano by Pietro Bracci on the side walls (1755).The tabernacle in the shape of a ciborium, made from lapis lazuli, agate, and gilded bronze, and the high altar on which it sits was designed in 1785 by the architect Carlo Marchionni.