If you return into the nave of the church and walk back towards the entrance, you will see, first, the very richly decorated Feroni Chapel, a splendid example of Baroque architecture and sculpture, designed by Giovanbattista Foggini in 1692.

The vault creates a hugely theatrical effect and the window draws in the light which is then reflected all around. The painting of the Death of St Joseph, part of the altar, is the work of the Bavarian painter Johan Carl Loth who worked in Venice. In 1447, the Renaissance-style marble "tempietto" was begun, to honor the miraculous fresco of the Annunciation, on the wall, popular devotion to which had led originally to the construction of this church.
In the Baroque period, the tempietto was given a very rich and rather complicated finish.
The fresco itself is a 14th century work that has been touched up and restored many times. Popular legend, however, has it that the fresco is the work of a 13th century monk named Bartholomew. Before designing and painting the head of the Virgin Mary, he stopped his work and prayed that he would be made worthy to portray the face of the Mother of Jesus. While he was praying, he fell asleep only to find, on reawakening, that the face had already been completed by an angel.
You should note the silverwork of the frame that encloses this venerated image, and also the silver altar frontal.
The coats-of-arms from the Medici family show how this shrine was under the patronage of the Grand Dukes themselves.