The rotunda was probably built in the 12th century. It is possible that the builders were the Cistercians from Bzovik, having then a village. At the end of the fifteenth or early sixteenth century, the rotunda was extended by adding a nave and presbytery. In the nineteenth century, a low tower appeared in front of the southern entrance.
The rotunda was built of worked stone blocks. Its diameter is 5,8 meters and the walls are approximately 90 cm thick. During the renovation of the building, the romanesque windows on the south and west side, the southern portal and the roof were restored.
Website apsida.sk, Baďan.