Virginia Chieffo Raguin, Sarah Stanbury: Women's Space: Patronage, Place, and Gender in the Medieval Church, Published by SUNY Press, 2005, ISBN0-7914-6365-6, ISBN978-0-7914-6365-9[2]
Richard Kenneth Emmerson, Sandra Clayton-Emmerson: Key Figures in Medieval Europe: An Encyclopedia, Published by CRC Press, 2006 ISBN0-415-97385-6, ISBN978-0-415-97385-4[4]
(tiếng Anh) Maria Prokopp (1984). Michigan University (biên tập). Italian Trecento Influence on Murals in East Central Europe, Particularly Hungary. Michigan: Akademiai Kiado. tr. 58, 71. ISBN963-05-3059-7.Google Books
(tiếng Anh) Gábor Klaniczay; Eva Pálmai (2002). Cambridge University Press (biên tập). Holy Rulers and Blessed Princesses. Cambridge: Cambridge University Press. tr. 342. ISBN0-521-42018-0.Google Books
(tiếng Anh) Csilla Ottlik Perczel (2001). East European Monographs (biên tập). A History of Architecture in the Carpathian Basin, 1000-1920. Wirginia: University of Wirginia. tr. 56, 221. ISBN0-88033-460-6.Google Books
(tiếng Anh) T Ulewicz (1984). Litterae et lingua: in honorem premislavi mroczkowski. Warsaw: Polish Science Academy. tr. 46.Google Books
(tiếng Anh) Jonathan Cape biên tập (1970). “vol. 5 Carthusians-Cockcroft”. Encyclopædia Britannica. London: Horace Everett Hooper. tr. 294.Google Books
(tiếng Anh) William Woys Weaver; Magdalena Thomas; Maria Dembińska (1999). Food and Drink in Medieval Poland: Rediscovering a Cuisine of the Past. Pennsylvania: University of Pennsylvania Press. tr. 39. ISBN0-8122-3224-0.Google Books