大衛一世對於這一切,見Oram ,David,第62–64頁;對於Princeps Cumbrensis,見Archibald Lawrie,Early Scottish Charters Prior to A.D. 1153,(Glasgow,1905年),注釋46. Richard Oram ,The Lordship
拉格納·洛德布羅克Books. 2007. ISBN 9781904955344. OCLC 166381361 (英语). Forte, Angelo; Oram , Richard ; Pedersen, Frederik (2005-05-30). Viking Empires (First ed.). Cambridge
鄧肯一世Edinburgh University Press, Edinburgh, 2002. ISBN 0-7486-1626-8 Oram , Richard (英语:Richard Oram ), David I: The King Who Made Scotland. Tempus, Stroud, 2004
都柏林王國 52: 22–37 [2024-08-06]. (原始内容存档 (PDF)于2024-08-02). Forte, Angelo, Richard Oram , & Pedersen, Frederik, Viking Empires (页面存档备份,存于互联网档案馆). Cambridge University
艾瑞克·霍布斯邦Macdougall(英语:Norman Macdougall) Rosalind Mitchison(英语:Rosalind Mitchison) Richard Oram (英语:Richard Oram ) T.C. Smout(英语:T.C. Smout) Nigel Tranter(英语:Nigel Tranter) Christopher