Маргарета Угарска — разлика између измена

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* {{Cite book | ref = harv | author= Rodd, Rennell |title= The Princes of Achaia and the Chronicles of Morea: A Study of Greece in the Middle Ages |volume=1 |year=1907 |publisher= E. Arnold |url= https://books.google.co.uk/books?id=-ubQAAAAMAAJ&pg=PA64 |isbn= | pages= 51, 56, 61, 64, 78, 82, 85, 86, 89, 153 |}}

* Stephenson, Paul (2000). Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900–1204. Cambridge University Press.