The intrados of the arch between the chancel and the anteroom is decorated with white-gold stucco panels with two putti holding a wreath in the central one. The vault frescos in the anteroom consists of a transverse oval framed pendentive-like spandrels resting on the four projecting pilasters in the diagonals. The frescoes are by Giovanni Battista Ricci da Novara. They include the Four Evangelists in the spandrels and, in the center oval, a Dove of the Holy Ghost, looming in a clearing of clouds.