Бела IV — разлика између измена

* {{cite book|last1=Engel|first1=Pál|last2=Pálosfalvi|first2=Tamás|last3=Ayton|first3=Andrew|title=Realm of St. Stephen: A History of Medieval Hungary|url=https://books.google.com/books?id=vEJNBqanT_8C|date = 22. July07. 2005|publisher=I.B.Tauris|isbn=978-1-85043-977-6}}