Key monographs
- Adamowicz Tadeusz, Witraże fryburskie Józefa Mehoffera: monografia zespołu, Wrocław: Zakład Narodowy im. Ossolińskich, 1982. [The classic and most complete Polish-language monograph on the cycle; a detailed iconographic analysis and stylistic context of the whole ensemble.]
- von Roda Hortensia, Die Glasmalereien von Józef Mehoffer in der Kathedrale St. Nikolaus in Freiburg i. Üe., Bern: Gesellschaft für Schweizerische Kunstgeschichte (GSK), 1995 (Beiträge zur Kunstgeschichte der Schweiz, 7), ISBN 3-7165-0969-8. [A “window by window” monograph from the Swiss perspective; the foundation of research on the German-language side.]
- von Roda Hortensia, Les vitraux de Jozef von Mehoffer, Fribourg: Pro Fribourg, 1985 (Pro Fribourg, 67). [An earlier, French-language synthesis by the same author.]
- Bourgarel Gérard, Tomczak Grzegorz, Pasquier Augustin (eds), Józef Mehoffer: de Cracovie à Fribourg, ce flamboyant art nouveau polonais, Fribourg: Pro Fribourg, 1995 (Pro Fribourg, 106/107). [The most important French-language collective publication on the Fribourg cycle.]
- Stryjeński Tadeusz, Vitraux de Joseph Mehoffer à la Cathédrale de Fribourg, Kraków, 1929. [An early synthetic account of the cycle, a testimony to the reception of its age.]
Scholarly articles and studies
- Carraux Nicolas, “William Ritter, interprète de l’art de Józef Mehoffer”, Versants: revue suisse des littératures romanes, 66:2 (2019), pp. 137–152.
- Sauterel Valérie, Noverraz Eric, „The Functioning and Development of Kirsch & Fleckner Stained Glass Workshop: A Brief History of the Collection and the Donation Made to Vitrocentre Romont in 1991”, Folia Historiae Artium, Seria Nowa, 17 (2019).
- Zeńczak Anna, “«Jeunesse de l’Art», un vitrail créé en 1900 par Józef Mehoffer”, Zeitschrift für schweizerische Archäologie und Kunstgeschichte (ZAK), 51:1 (1994), p. 23 ff.
- Cingria Alexandre, „Les vitraux du peintre polonais Mehoffer à la cathédrale de Fribourg”, w: Le chant de la Pologne (Nova et Vetera), Fribourg: Fragnière Frères [1927], s. 42–56. Przedruk: Pro Fribourg, 106/107 (1995), s. 69–82.
- Yoki [E. Aebischer], „Mehoffer et Manessier, deux pionniers de l'art du vitrail”, Pierre d'angle, 4 (1998), s. 143–150.
- Kozicki Władysław, “Józef Mehoffer”, Sztuki Piękne, 10–11 (1926/1927), pp. 378–403.
- Szydłowski Tadeusz, “Misterium polskiej sztuki za granicą. Witraże Józefa Mehoffera we Fryburgu szwajcarskim”, Kurier Literacko-Naukowy, 47 (1938), p. 4.
Museum catalogues and studies
- Studziżba-Kubalska Beata, Mehoffer z Fryburga. Projekty witraży katedralnych, Kraków: National Museum in Kraków, 2024/2025 (exhibition brochure, 14 pp.).
- National Museum in Kraków, curatorial materials for the exhibition “Mehoffer z Fryburga. Projekty witraży katedralnych” (2024–2025), available online: mnk.pl.
Archival and manuscript sources
- Vitrocentre Romont / Vitromusée Romont — the 1991 donation of the Kirsch & Fleckner workshop (cartoons, glass samples, workshop photographs, technical correspondence 1895–1936).
- Archives de l’État de Fribourg / Staatsarchiv Freiburg — administrative documentation of the cathedral parish and the donors of the cycle.
- Archives littéraires suisses (ALS), Bern — the correspondence of William Ritter relating to the reception of the Fribourg cycle.
- Żeleński Adam, “Rewelacja fryburska”, typescript, 1946 (Żeleński family archive, Kraków).
Databases and bibliographic tools
- Vitrosearch — the Swiss stained-glass heritage platform (vitrosearch.ch).
- Corpus Vitrearum Polska (cvp.ihs.uj.edu.pl) — the Polish bibliography of stained glass.
- Corpus Vitrearum Medii Aevi (corpusvitrearum.org), sekcja szwajcarska.
Sources specific to this window
- Physiologus (ed. F. Sbordone, Milan 1936; Polish translation K. Jażdżewska, Warsaw 2003). [An early Christian allegorical bestiary (second–third century), the source of the motif of the eagle renewing itself by gazing into the sun; present in sacred art in the Middle Ages and taken up by the Symbolism of the late nineteenth century.]
- Voragine Jacopo da, Legenda aurea (ed. Th. Graesse, Leipzig 1850), passim: De Sancto Georgio, De Sancto Michaele Archangelo, De Sancta Anna, De Sancta Maria Magdalena. [The classic thirteenth-century literary source for the iconography of the four saints of the Fribourg window.]
- Roukema E., Saint George and Saint Michael in Art and Legend, Cambridge 1996. [A comparative study of the iconography of the two military saints, helpful for understanding Mehoffer’s decision to depict George with a “fairy-tale cat-dragon” instead of the canonical heraldic dragon.]
Heritage object record FWNDK-WIT-FRI-006 · prepared by: the Foundation for the Virtualisation of National Cultural Heritage, source research June 2026 (von Roda, Sauterel, Adamowicz, the catalogues of the MNK and the Musée d’Orsay). Record text: licence CC BY-SA 4.0. Items marked in the record “[for source verification]” remain under verification.