Description: Searchable registers of papal letters from the 13th- and 14th-century popes, based on Registres et lettres des Papes du XIIIe siècle (32 vols.; Rome, 1883- ) and Registres et lettres des Papes du XIVe siècle (48 vols.; Rome, 1899- ). Access info: "Enter databases" then select Papal letters
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