The Church of St. Thomas is situated in the surrounding area of Prčanj. Today only its foundations remain. It could not be localised in situ in autumn 2021 due to the vegetation in the area. The church is a triconchos with a dome, built probably in the 9th century. Fragments of capitals and an altar screen have been found. Such a ground plan is preserved only in the Boka Kotorska in the Eastern Adriatic and was also implemented in the original church of St. Tryphon in Kotor. This form, however, is known in Carolingian architecture with the most prominent example in the oratory at Germigny-des-Prés, dated to the beginning of the 9th century, and in Early Christian as well as Early Medieval Armenian architecture.