Ridoredh was the count of Vannes in the ninth century.Barry Cunliffe, Bretons and Britons: The Fight for Identity (Oxford University Press, 2021), p. 419. According to a family tree added to a manuscript of the Abbey of Saint-Aubin around the year 1100, he was the father of two Breton kings: Pascweten, who was nobly born (Latin ingenuus), and Alan the Great, who was illegitimate (bastardus).René Poupardin, "Généalogies Angevines du XIe siècle", Mélanges de l'École française de Rome 20 (1900), pp. 199–208. The manuscript is now Reg. lat. 1283 in the Vatican Library.
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