The church was built in the 9th or 10th century during the Great Moravian period and is one of the oldest buildings in Slovakia. The first major reconstruction of the building took place around the middle of the 13th century. The windows on the north side were replaced with new, gothic ones. At the turn of the thirteenth and fourteenth century, the entire interior was decorated with frescoes, and about a century later, windows were enlarged on the south side of the nave to the gothic form. Also in the fifteenth century, the original entrance portal was replaced with a new gothic one. Subsequent modifications occurred in the 17th and 18th centuries and also related to windows. The first archaeological research around the church was carried out in 1964, and in 2000, the church renovation was started.
The building is a small pre-romanesque, single-nave temple with a square chancel on the eastern side. Excavations showed that originally from the west side it also had square narthex, that is covered vestibule.
The church is one of the most valuable sacral monuments, is one of the oldest preserved churches in Slovakia and the most important and the only whole preserved monument of Great Moravian architecture.
Website apsida.sk, Kopčany.