Pierre Riche, The Carolingians: A Family Who Forged Europe, University of Pennsylvania Press, 1993, p. 44:
Pierre Riche, The Carolingians: A Family Who Forged Europe, University of Pennsylvania Press, 1993, p. 44: "In the ninth century,
when chroniclers gave him the epithet Martellus, "the Hammer," they seem to have been consciously recalling Judas Maccabaeus, "the Hammerer"".
