Located in the hamlet of Montegelli (meaning “little mountain”), it is a Romanesque-style church dating from the 12th century. Over time it has undergone numerous changes. The facade itself was redone from scratch in 1913. The harmony between ancient and modern gives the parish a majestic and stately appearance. Noteworthy inside are a baptismal font in Istrian stone dating from the 16th century, a painting depicting the “Martyrdom of St. Stephen” by Vincenzo Lasagni (19th century), a fresco contained in the bowl of the apse, reproducing the Assumpted Virgin being crowned by Christ and the Eternal Father, and, finally, the Lourdes Grotto, a faithful reconstruction of the original one, inserted in a wing of the building and dated 1930. The bell tower, built in the 19th century, is embellished with a valuable 15th-century bell. It is a large bell from the ancient castle, installed on the civic tower, whose intrinsic value derives from the year of casting (1450) and the alloy used, in which there is a considerable amount of silver; it weighs about 450 kg. During World War II it risked ending up like the other bells, melted down to make cannons, but, drummed at length with deadly blows from a mace, it resisted until its assailants were stripped of all hope, and they left, desisting from their intent.