On the right side of the entrance there are two monuments by anonymous artists: in the first span, the mausoleum of Giovanni de' Cerchi, surmounted by an early 14th-century porphyry vase (a gift of a queen of Cyprus) and the mausoleum of John of Brienne, king of Jerusalem and emperor-regent of Constantinople. Above this last burial monument stands a statue of the Blessed Virgin and on its left the figure of a crowned woman seated on a lion, made by Cosmatesco (1290).