Codex epistolaris Carolinus : letters from the popes to the Frankish rulers, 739-791 - McKitterick, Rosamond, 1949-; McKitterick, Rosamond, 1949-; Espolo, Dorine van, 1981-; Espolo, Dorine van, 1981-; Pollard, Richard Matthew; Pollard, Richard Matthew; Price, Richard, 1947-; Price, Richard, 1947- (Translated texts for historians ;, 2021)