King of Saxony 1806-1827. LS in French, signed 'Frederic Auguste,' one page, 7.25 x 7.25, December 21, 1816. Letter to a Monsieur de Cardinal. He thanks the cardinal for his very obliging letter and assures him of his esteem and particular friendship. Letter is affixed by all four corners to a slightly larger sheet. In fine condition, with light wrinkling to corners from adhesive. RRAuction COA.
