THE ROTONDA DI SAN LORENZO is a church located in the main square of the city of Mantua in Northern Italy. It was constructed during the late 11th century during the reign of the powerful Canossa family.

The church is a fine example of Romanesque architecture, with a central plan and Byzantine-style frescoes. It’s primarily composed of bricks, according to the Lombard tradition, but also includes marble detailing. After construction, the church was dedicated to the martyr St. Lawrence.