The church of Saint Agatha was built around the middle of the 12th century in Romanesque style. It may be related to the Victorian settlement of Suvaydanu, present in an inventory of 1338, from which the local name of the area (su Idanu) is derived. Some lateral sections with small arches and the one-nave layout belong to this first phase. Large sections of the walls date back to the Romanesque layout datable to the second half of the 12th century, while to the first half of the 14th century came the Gothic interventions with the consequent demolition of the semicircular apse and reconstruction in quadrangular form. Inside, the presbytery, access to which is through a round arch, has a ribbed cross vault. On the northern side is a single lancet window with a sloping sill. The masonry is made of medium-sized limestone cantons. After a long period of abandonment, in 1631 the building and all the annexed property were given to the Capuchin fathers, who built the convent adjacent to the church.Inside, the building has a barrel vault marked by two round arches set on corbels.