FRANÇOIS I (1494-1547). L.A.S., [Madrid early 1526], to Charles V; 1page in-4, address on verso "a lampereur mon bon frere". Letter to Charles V at the end of his captivity, after the signing of the Treaty of Madrid. [To end his captivity, Francis I signed the Treaty of Madrid on January 14, 1526, ceding the Duchy of Burgundy and the Charolais to the Emperor, renouncing all claims to Italy, Flanders and Artois, and agreeing to marry Eleanor of Habsburg, Charles V's sister; his sons were sent as hostages. François was freed on March 17, 1526]. "Monsyeur mon bon frere ayant reseu auyorduy lettres de Franse je vous ai depeche se porteur pour les porter vous par les lesquelles pourez connoytre la dylygense quy se fet de tenyr se quy est treté aquoy je croy quy ny aura fote se dyt porteur vous dyra pleus olonc toute chozes que ne saroyt fere ma moveze letre parquoy fera fyn sans se laser destre a james Vostre bon frere amy et trop oblyge Francoys".