"Pipino II de Aquitania," The Routledge Companion to Medieval Warfare, Jim Bradbury, ed. (Routledge, 2004), 72.Archibald Ross Lewis (1965), The Development of Southern French and Catalan Society, 718-1050 (Austin: University of Texas Press), 100-101, menciona la alianza de Pipino con los vikingos sin referirse al paganismo. Edward Peters (1970), The Shadow King: Rex inutilis in Medieval Law and Literature, 751-1327 (New Haven: Yale University Press), 67-8, cita el criticismo de los Annales Bertiniani hacia Pipino a partir de 843.
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"Pipino II de Aquitania," The Routledge Companion to Medieval Warfare, Jim Bradbury, ed. (Routledge, 2004), 72.Archibald Ross Lewis (1965), The Development of Southern French and Catalan Society, 718-1050 (Austin: University of Texas Press), 100-101, menciona la alianza de Pipino con los vikingos sin referirse al paganismo. Edward Peters (1970), The Shadow King: Rex inutilis in Medieval Law and Literature, 751-1327 (New Haven: Yale University Press), 67-8, cita el criticismo de los Annales Bertiniani hacia Pipino a partir de 843.