Letter Signed ‘Napol’ by Napoleon, addressed ‘Mon Cousin’ [Prince Eugene], addressing his adopted son (‘Mon fils …votre affectionné père’), concerning the use of conscripts and repressive measures to be taken in Dalmatia, commenting briskly on General Molitor’s complaint about the lack of uniforms for the conscripts. 2 pp. 9 x 7 inches, half-mourning border, in fine clean condition. Provenance: Christies, London. St. Cloud, 6 June 1806. A substantial letter signed during the period of Napoleon’s greatest military and political success. Napoleon writes to Eugène de Beauharnais (1781-1824). Prince Eugène, the son of the Empress Josephine by her marriage to Alexander de Beauharnais, was appointed Viceroy of Italy on 7 June 1805. The victory of Austerlitz on 2 December 1805, reuniting the kingdom of Italy with the Veneto and Istria, increased his authority and in January 1806 Napoleon adopted him as his son, and began to address him in letters as ‘mon fils’.