{{cite web |url=https://marcus.uib.no/instance/webresource/a48afd43-4040-4b92-b55e-801219872d27 |title=Diplom datert 1449, 16. mars. Tvilde (Voss, Hordaland). Trykt i Diplomatarium Norvegicum B.4. Nr. 906 |author=Avdeling for spesialsamlinger |accessdate=Sun Sep 08, 2024 |publisher=University of Bergen Library}}