Łowicz Cathedral crypts

The Łowicz Cathedral crypts are the burial vaults beneath the cathedral in the town of Łowicz. They are historically significant as the site that houses the earthly remains traditionally associated with twelve Archbishops of Gniezno, the Primates of Poland, who had resided in Łowicz. The cathedral and its material culture have been the subject of museological attention—items described as "Treasures from Łowicz" have been exhibited at institutions such as the Wawel Royal Castle—underscoring the regional and national importance of the site and its ecclesiastical heritage. The supplied sources identify the crypts' function as an ecclesiastical burial ground and reference prominent historical officeholders associated with the primacy of Poland (for example, Maciej Łubieński is named in the available material as a historical primate). However, the excerpts provided do not give dates for construction or burials, do not confirm which specific primates are interred there within the supplied text, and do not describe any reports of hauntings, apparitions, sounds, or other paranormal activity. No named supernatural entities or oral legends appear in the cited materials, and no investigative or explanatory frameworks for alleged phenomena are present in the sources.