The church of Sant' Agostino was built between 1280 and 1299. It was consecrated by the Cardinal Matteo d'Acquasparta--a short while before that very unsatisfactory prelate's attempt to make peace in Florence while Dante sat in the priorate. On the right of the principal entrance is the chapel of San Bartolo, constructed in 1494 by order of the Commune. The tomb itself is the work of Benedetto da Maiano and his pupils, but hardly equal to the one that Benedetto had made for Fina. The _tondo_ of the Madonna and Child, in which the Mother is guiding the Infant's little hand to bless the people, is most exquisite, and probably it (with, perhaps, the three theological virtues) is the only part executed by the master himself. The three Saints on the wall, the four Doctors on the ceiling were painted by Sebastiano Mainardi. The picture over the next altar, of the same year 1494, the Madonna and Child, with many Saints and a tiny little Dominican friar as donor, is one of the best works of Pier Francesco Fiorentino. The frescoed Pietà above is ascribed to Vincenzo Tamagni. Then comes one of those curious symbolical representations of the Passion, which Don Lorenzo and Fra Angelico had made traditional. The second altar, dedicated to St Nicholas of Tolentino, has frescoes of 1529 by Vincenzo Tamagni, representing the Madonna and Child with Angels, St Nicholas of Tolentino and St Rock, St Antony the abbot and St Paul the first hermit. At the first altar on the left, the chapel of the Crocifisso, are more frescoes by Tamagni; kneeling opposite the Magdalene at the foot of the Cross is St Clare of Montefalco, holding in her hand her heart marked with the signs of the Passion; the St Margaret on the left is a thoroughly Raffaelesque figure, while the Madonna and St John are more like Perugino at his weakest. Then comes St Sebastian taking the people of San Gimignano under his protection in the time of pestilence, an admirable fresco by Benozzo Gozzoli; around the Apollo of Christian legend gather the people of the town in prayer; in spite of Christ and Mary, the Eternal Father and the Angels of wrath are hurling down the arrows of pestilence, but these are broken into pieces by other Angels at Sebastian's intercession. Over the third altar is the Madonna delle Grazie with St Michael, originally a fresco by Lippo Memmi, but completely repainted and modernised.