{{cite web |url=https://marcus.uib.no/instance/webresource/672aa0b3-df03-4f15-af57-301f5e6415c6 |title=Diplom datert 1293, 26. mai. Aga (Ullensvang, Hordaland). Trygt i Diplomatarium Norvegicum B.4. Nr. 6. |author=Avdeling for spesialsamlinger |accessdate=Fri Apr 19, 2024 |publisher=University of Bergen Library}}