San Pietro, Romanesque and Gothic church in Terni, Italy

San Pietro is a church in Terni with a gabled facade and the remains of a Gothic rose window above the portal. A square bell tower in brick and stone with mullioned windows stands on the left side. The interior has a single nave, a rectangular presbytery, and 13th- and 14th-century frescoes.

The site held an Arian place of worship, identified as the cathedral of San Pietro del Tirio, where Pope Zachary and the Lombard king Liutprand met in 742. In 1287 Bishop Thomas entrusted the church to the Augustinians, who began the present Gothic building around 1300. An earthquake in 1703 caused heavy damage and led to a reconstruction that changed the original structure.

The second chapel on the right wall is dedicated to Saint Rita of Cascia, widely venerated in Terni: every 22 May several Masses are celebrated and blessed roses are distributed to the faithful. Inside, the tomb slab of Stefano Manassei, a Florentine podestà and funder of the 15th-century works, is set into the wall rather than the floor.

The church remains an active place of worship and is located in a central area where the Romanesque and Gothic architecture can be easily studied from the exterior. The adjacent former monastery now houses an educational institution, so the area tends to be active during daylight hours.

The tomb slab of Stefano Manassei is set into the wall rather than laid in the floor, an unusual position. He was podestà of Florence and funded the 15th-century works on the church, which stood beside his family's Palazzo Manassei.