German prince of the House of Ascania (1734-1793), the last ruler of Anhalf-Zerbst, and the younger brother of Russian leader Catherine the Great. LS in French, signed “Anhalt,” one page, 7 x 9, July 28, 1760. Untranslated letter to Madame La Marchalle, with a closing written in Anhalt’s own hand, as well as a docketing notation to reverse of the second integral page in his hand. In very good condition, with a couple of ink notations and cancellations over text, intersecting folds, ink cancellation over docketing, and mild toning. RR Auction COA.