Holy Men: Scotland 80–1000 AD. Edinburgh University Press. Todd, James Henthorn (translator) (1867) Cogad Gaedel re Gallaib: The War of the Gaedhil with the Gaill. London: Longmans, Green, Reader & Dyer. Woolf, Alex (2005) "The origins and ancestry of Somerled: Gofraid mac Fergusa and The Annals of the Four Masters" (pdf) in Mediaeval Scandinavia 15'''. Woolf, Alex "The Age of the Sea-Kings: 900–1300" in Omand, Donald (ed.) (2006) The Argyll Book''. Edinburgh. Birlinn. 9th-century births 9th century in Scotland 9th-century rulers of the Kingdom of the Isles 9th-century rulers in Europe Rulers of Lochlann Uí Ímair 870s deaths Year of birth unknown Year of death uncertain