The first written mention of the building dates back to 1365, when the rotunda was a parish church. But the building itself is much older and dates back to 1125. It was built on an important trade route that led from Visegrad to the Vltava crossing. A small simple building of marl blocks arranged in rows, consists of a round base, a domed roof with a lantern and a semicircular apse on the east side. The apse is decorated with a curved frieze. At the top is a lantern with corresponding Romanesque windows, which is topped with a gilded cross with a crescent moon and an eight-pointed star.→