 It has a large Gothic portal surmounted by a rose window.It houses some parts of a polyptych by Ambrogio Lorenzetti (c. 1340), a "Pietà" by Alessandro Casolani and a 15th-century small fresc of "Madonna with Saints".The municipality is formed by the municipal seat of Roccalbegna and the villages ("frazioni") of Cana, Santa Caterina, Triana and Vallerona.