{{cite web |url=https://marcus.uib.no/instance/webresource/0bc93af9-b7df-4c8b-a2ec-41a93df3b8e9 |title=Diplom datert 21. mars 1436, Ullensvang (Hordaland).Trykt i Diplomatarium Norvegicum B.6. Nr. 463 |author=Avdeling for spesialsamlinger |accessdate=Fri Apr 26, 2024 |publisher=University of Bergen Library}}