Charles du Fresne, sieur du Cange

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Charles du Fresne, sieur du Cange (French: [ʃaʁl dy fʁɛn sjœʁ dy kɑ̃ʒ]; December 18, 1610 in Amiens – October 23, 1688 in Paris, aged 77), also known simply as Charles Dufresne, was a distinguished French philologist and historian of the Middle Ages and Byzantium.