The third chapel on the right is dedicated to St Nicholas of Bari. The chapel already existed in 1492 in the former church of S. Maria in Portico, and was owned by the Muti family. In 1650, following the marriage of the last heir, Cecilia, with Giulio Bussi, the family assumed the double surname. In 1727 the chapel was re-consecrated, and restored in about 1800.