↑"Sofija Vytautaitė", in Visuotinė lietuvių enciklopedija (Universal Lithuanian Encyclopedia), ed. by Edvardas Gudavičius and Algirdas Matulevičius (2021)
↑Barker, John W. (1969). Manuel II Palaeologus (1391-1425); a study in late Byzantine statesmanship. New Brunswick, N.J.: Rutgers University Press. pp.xxiv. ISBN0-8135-0582-8. OCLC11370.
↑Saletti, Beatrice (2020). "Loyalty to the church, loyalty to the duke: conflicts of power in late medieval Ferrara". In Fuller, Amy; McCallum, John; Hodgson, Natasha; Morton, Nicholas (eds.). Religion and Conflict in Medieval and Early Modern Worlds: Identities, Communities and Authorities. Taylor & Francis. pp.223–238. ISBN9780429836008.
↑Ćirković, Sima (1964). Историја средњовековне босанске државе[History of the medieval Bosnian state] (in Serbo-Croatian). Srpska književna zadruga (Serbian Literary Cooperative). p.165.
↑Feldkamp, Michael F. (2002). Regentenlisten und Stammtafeln zur Geschichte Europas: vom Mittelalter bis zur Gegenwart[Lists of rulers and genealogical tables on the history of Europe: from the Middle Ages to the present] (in German). Stuttgart: Reclam. p.293. ISBN9783150170342.
↑Freund, Scarlett; Ruiz (1994). "Jews, Conversos, and the Inquisition in Spain, 1391–1492: The Ambiguities of History". In Perry, Marvin; Schweitzer, Frederick M. (eds.). Jewish-Christian Encounters Over the Centuries: Symbiosis, Prejudice, Holocaust, Dialogue. P. Lang. pp.169–195. ISBN978-0-8204-2082-0.
↑Setton, Kenneth M. (general editor) A History of the Crusades: Volume III – The Fourteenth and Fifteenth Centuries. Harry W. Hazard, editor. University of Wisconsin Press: Madison, 1975
↑Lalande, Denis, Jean II le Meingre, dit Boucicaut: (1366–1421) - étude d'une biographie héroïque, Genève 1988.
Meyer Setton, Kenneth (1976). The Papacy and the Levant, 1204-1571: The thirteenth and fourteenth centuries. American Philosophical Society. ISBN9780871691149.
↑Jasiński, Kazimierz (1998). Rodowód Piastów mazowieckich[The Pedigree of the Masovian Piasts]. Poznań - Wrocław: Wydawnictwo Historyczne (Historical Publishing House). p.97. ISBN83-913563-0-2.