Depiction of Harald Fairhair (Haraldr Hárfagri) on the Zetland Window in Lerwick Town Hall
Harald Fairhair (Haraldr Hárfagri / Harald Hårfagre), who rained in Norway c. 872 to 930, and conquered Shetland around c. 870. More information at http://www.shetland.gov.uk/lerwick-town-hall/Zetland-Window.asp