In the right transept is the Bichi Chapel, commissioned by Antonio Bichi and dedicated to his son-in-law, Cristoforo Bellanti. The chapel, built between 1490 and 1494, was richly decorated with a painting cycle, part of which is still visible. The altar, which now hold a canvas of Saint Christopher painted in 1755 by Niccolò Franchini, was originally adorned with a polyptych (now in Berlin) by . . .