Du Cange, Charles du Fresne, sieur

Du Cange, Charles du Fresne, sieur

(shärl dü frĕn syör dü käNzh), 1610–88, French medieval historian and philologist. He is principally known for his Glossarium mediae et infimae Latinitatis [glossary of medieval and late Latin] (1678). It remains the greatest collection ever made of the forms of early medieval Latin and of the oldest Romance languages.