According to the monastery tradition is the church firstly remembered in 1267. It used to be located by the main monastery gate leading to the west (later towards to town of Kutná Hora) and at least since the times of the abbot Heidenreich used to serve as a church for konvrses, i.e. for the laic members of the order. Originally it has one nave with non-separated clavis in the width and height of the nave.

In the late 14th century was the church extended and in 1389 the archbishop Jan of Jenštejn issued an indulgence document to the Holy grave in Sedlec, which was located right there. The elder early gothic church has been extended by a second aisle from the north, which was enclosed by a proper polygonal clavis and both spaces were connected through the gap cut out in the wall. This way was there created quite unusual architectonical construction of a big two-aisled church enclosed by a proper clavis. Each of the naves was of a different height and width , was built up by a different construction method and was divided by a different architectonical set up. Since that time has the church became an important pilgrimage place. Around 1400 was the famous Sedlec monstrance created for this church.After the abolition of the Cistercian order was the church closed down and for the general bad condition demolished in 1817.