The Visigothic kingdom's defeat at the battle traditionally called Guadalete is described by the near contemporary Chronicle of 754 and by the modern historians who draw on it, but the campaign's rapid overrunning of the Iberian Peninsula afterward is narrated as a sequence of surrenders and sieges rather than quantified, and no historian totals losses across the whole conquest.
What would resolve this A source critical study of the Chronicle of 754's account of Guadalete combined with a historian's estimate of losses during the conquest's rapid overrunning of the peninsula's cities.
OpenEarly Islamic history, Visigothic history, source criticism.Hugh Kennedy, The Great Arab Conquests: How the Spread of Islam Changed the World We Live In