Беренгария Португалска: Разлика между версии

* {{cite book |title=Foundations of the Portuguese Empire: 1415 -– 1580 |first=Bailey W. | last=Diffie |first2=George D| last2=Winius | publisher=University of Minnesota Press |year=1985 |ref=harv}}

* {{cite book |title=Kingship and State Formation in Sweden: 1130 -– 1290 |first=Philip |last=Line |publisher=Brill |year=2007 |ref=harv}}