Co-Cathedral of the Assumption of Mary

The Co-Cathedral of the Assumption of Mary is a Romanesque church with thick stone walls and semicircular arches supporting the main nave and side passages. Sturdy columns divide the interior space, creating the layered structure typical of churches from this architectural period.

Construction of the church took place during the late 10th century, a time when Romanesque architecture was spreading across Europe and Roman building methods were revived. This period shaped how medieval churches were designed and built throughout the continent.

The church serves as a gathering place for local celebrations and religious observances throughout the year in Sutri. Visitors can sense how the space has remained central to the community's spiritual life and important occasions.

The church is generally open to visitors during daytime hours, though weekend and religious services may limit access at certain times. Morning visits tend to work best for seeing the interior clearly and avoiding disruptions during prayer times.

The stonework contains geometric patterns and simple circular designs that reveal the mathematical thinking of medieval builders. These thoughtful design choices show how craftspeople of that era blended function with visual interest in their work.