{{cite web |url=https://marcus.uib.no/instance/webresource/0beab781-4246-4954-a0ef-2f247ea3b4c5 |title=Diplom datert 1528, 27. juni. Lübeck. Trykt i Diplomatarium Norvegicum B.6. Nr. 704 |author=Avdeling for spesialsamlinger |accessdate=Thu Apr 18, 2024 |publisher=University of Bergen Library}}