The article is focused on the building history of Lavatorium of the Zlatá Koruna monastery, which was accepted by older research as the work of Michal Parléř and as an object built after the middle of the 14th century. The aim of the paper was to point out the morphological, proportional and material differences between the preserved fragments of discussed Lavatorium and the remains of the courtyard wall of the eastern wing of the ambite - and to suggest that the structure of the Lavatorium was built during the building boom around 1300 and after the mid-14th century was only incorporated into younger, newly built structures.
The correctness of this hypothesis is supported not only by the very distinctiveness of the fragments of the Lavatorium from the adjacent structures of the courtyard wall of the eastern wing of the ambite, but also by the collected (and until recently partially neglected) architectural parts from other areas of the monastery, dating precisely from around 1300.