Cosmas of Prague
The historian Cosmas of Prague recorded the legend of Oldřich and Božena, in his "Chronica Boëmorum" ("Chronicle of the Bohemians"). According to the legend, the young (and married) Oldřich set out on a hunt and travelled to Peruc. There, he spied a beautiful peasant girl, Božena, by a well known today as Božena's Spring