In largo S. Giovanni Maggiore we can admire the small church San Giovanni dei Pappacoda, founded in the early fifteenth century by Artusio Pappacoda, Siniscalco and counselor to the Angevin court, today the small church is known as Cappella Pappacoda. It consists of a late-Gothic portal that adorns the tufa façade like a marble embroidery, made by Antonio Baboccio (1351-1435), sculptor, architect and goldsmith who also sculpted the main portal of the Duomo. Of particular interest is the bell tower for the chromatic contrast between the materials with which it is built: marble, tuff and piperno. Currently the church is deconsecrated and used as Aula Magna by the neighbor " Oriental University Institute ".