French prince (1394–1465) kept prisoner by the King of England for thirty years during the Hundred Years War, remembered as an accomplished medieval poet both in French and English. Manuscript vellum DS, one page, 15 x 5.5, December 21, 1457. Untranslated document in French. Intersecting folds and scattered creases, paper loss to left edge (affecting some text), and a large cut and some dampstaining to the lower left, otherwise very good condition. As almost nothing is left in the hand of his contemporaries, Charles is the earliest important poet whose autograph is available, although very rare. RR Auction COA.