It situated in the Oltrarno district, overlooking the homonym Square. It was built on the remains of the thirteenth-century Augustinian monastery destroyed by fire in 1371. The Augustinian made their home an important artistic, theological and cultural centre. To accommodate the crowd, was created the Square and, since 1397, the new Basilica. The construction was entrusted to Filippo Brunelleschi, who signed as his last great work. After the death of the Master, the yard passed in 1452 to his three followers who, however, did not understand fully the originality, making several changes. In 1492, the monastery was a shelter for the exiled Michelangelo, who gave thanks to the Crucifix (now in the sacristy). The bell tower, 70 meters high, was designed by Baccio d'Agnolo. In the sixteenth century, Bartolomeo Ammannati built the second cloister. Over the centuries, the Basilica has undergone numerous interventions, such as the addition of Baroque baldachin by Giovanni Caccini and Gherardo Silvani (1599-1608), placed above the main altar. Towards 1620, Giulio and Alfonso Parigi brought the project forward Ammannati, building the Dead Cloister. The external facade was left unfinished, with exposed stone until the eighteenth century, when it was plastered. The three naves are separated by stone columns with Corinthian capitals and pier caps that support round arches and vaults. At the center, there is the high altar, fulcrum of the whole architecture, surmounted by a dome. The ceiling of the nave, with paneled paintings, dating back to the nineteenth century. The interior facade preserves the fifteenth glass by Perugino, depicting Pentecost. All the decoration is Baroque, inlaid with semi-precious stones, marble sculptures, bronzes, carved stalls and carved. The Church has 38 side altars decorated with a very rich collection of treasures and works of art.