Barrow, G. W. S., The Kingdom of the Scots: Government, Church and Society from the Eleventh to the Fourteenth Century. New York : St. Martin's Press, 1973.

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The seventh-century urbs regis of Dunbar (Dynbaer) (Eddius, Life of Wilfrid, 76). Dunbar became the chief place of the comital dynasty of Cospatric (afterwards earls of Dunbar or March) in East Lothain was almost certainly a shire-centre in the eleventh and twelfth centuries.