Redigerer Hen Ogledd (avsnitt)

== Litteratur ==
;Referert fra
* Davies, John (1990): ''A History of Wales'' (første utg.), London: Penguin Group (utgitt 1993), ISBN 0-713-99098-8
* Jackson, Kenneth Hurlstone (1953): ''Language and History in Early Britain: A chronological survey of the Brittonic languages, first to twelfth century A.D.'', Edinburgh: Edinburgh University Press
* Koch, John T., red. (2005): ''Celtic Culture: A Historical Encyclopedia'', ABL-CLIO (published 2006), ISBN 9781851094400
* Lloyd, John Edward (1911): [http://books.google.com/?id=NYwNAAAAIAAJ&printsec=frontcover ''A History of Wales from the Earliest Times to the Edwardian Conquest''], '''I''' (andre utg.), London: Longmans, Green, and Co. (utgitt 1912)

;Ytterligere lesning
*Alcock, Leslie: ''Kings and Warriors, Craftsmen and Priests in Northern Britain, AD 550-850''. Edinburgh, 2003.
*Alcock, Leslie: «Gwyr y Gogledd. An archaeological appraisal». ''Archaeologia Cambrensis'' 132 (1984 for 1983). pp.&nbsp;1-18.
*Cessford, Craig: «Northern England and the Gododdin poem». ''Northern History'' 33 (1997). pp.&nbsp;218-22.
*Dark, Kenneth R.: ''Civitas to Kingdom. British political continuity, 300-800''. London: Leicester UP, 1994.
*Dumville, David N.: «Early Welsh Poetry: Problems of Historicity». I ''Early Welsh Poetry: Studies in the Book of Aneirin'', red. Brynley F. Roberts. Aberystwyth, 1988. 1-16.
*Dumville, David N.: «The origins of Northumbria: Some aspects of the British background». I ''The Origins of Anglo-Saxon Kingdoms'', red. S. Bassett. Leicester: Leicester University Press, 1989. ss.&nbsp;213-22.
*Higham, N.J.: «Britons in Northern England: Through a Thick Glass Darkly». ''Northern History'' 38 (2001). ss.&nbsp;5-25.
*Macquarrie, A.: «The Kings of Strathclyde, c.400-1018». I ''Medieval Scotland: Government, Lordship and Community'', ed. A. Grant and K.J. Stringer. Edinburgh: Edinburgh UP, 1993. ss.&nbsp;1-19.
*Miller, Molly: «Historicity and the pedigrees of north countrymen». ''Bulletin of the Board of Celtic Studies'' 26 (1975). pp.&nbsp;255-80.
*[[Alex Woolf|Woolf, Alex]]: «Cædualla Rex Brettonum and the Passing of the Old North». ''Northern History'' 41.1 (2004): 1-20.