Godefroy dari Bouillon
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Murray, Alan V., "The Army of Godfrey of Bouillon, 1096–1099: Structure and Dynamics of a Contingent on the First Crusade" (PDF) Diarsipkan 2022-09-21 di Wayback Machine., Revue belge de philologie et d'histoire 70 (2), 1992
John, Simon (2017). Godfrey of Bouillon: Duke of Lower Lotharingia, Ruler of Latin Jerusalem, c. 1060–1100. Taylor & Francis. ISBN 978-1-317-12630-0. Diarsipkan dari versi asli tanggal 2023-08-06. Diakses tanggal 2023-04-26.
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Rubenstein, Jay (2008).  Gabriele, Matthew; Stuckey, Jace, ed. How Carolingian Kingship Trumped Millenniarism at the End of the First Crusade in 'The legend of Charlemagne in the Middle Ages: power, faith, and crusade'. Palgrave Macmillan. ISBN 978-0-230-61544-1.