Kőmíves Kelemenné is a Hungarian folk tale about the building of the fortress of Deva. Originating in the 16th century, its plot derived from a folk ballad. There are several versions of this tale, with minor differences. The eponymous poem makes reference to a well-known Hungarian folk tale in which the central character – a stonemason named Kőműves Kelemen – finds that the castle he’s trying to build keeps falling down, and is forced to sacrifice his beloved wife and mix her remains into the mortar in order to make the castle stand. This is a reference familiar to almost any Hungarian reader, but clearly not obvious to the non-Hungarian.