The many side chapels in the nave are mainly of the 17th and 18th century, such as the Feroni Chapel, by Giovan Battista Foggini and others, a jewel of the Florentine Baroque.
The Tribune has nine chapels which were completely transformed in the baroque period. Andrea del Castagno, one of the principal exponents of the Florentine renaissance style, was especially active in Santissima Annunziata: one of his frescoes is of St. Julian, in the Feroni Chapel, another is of the Holy Trinity with St. Jerome, in the adjacent chapel.