EN
The article discusses the problem of the location of the hermitage of the Benedictine monks (the so-called Five Brothers), who were martyred within the Piast state in 1003. In the course of the discussion that has been continuing for over a century, several possible locations have been indicated: Kazimierz Biskupi (near Konin), Kazmierz (near Poznan) and Miedzyrzecz. The author critically analyses the main points of the ongoing debate and argues that the scarcity of sources render it impossible to provide a single solution to this traditional puzzle of the early medieval studies in Poland.