AUSTRIA. CHARLES, Archduke of Austria (1771-1847) younger brother of Emperor Franz I and great warrior. L.S. with autograph compliment, Regensburg January 14, 1809; 1 page in-fol. He thanks his correspondent for his wishes and remembers with pleasure "the moments we spent together of which you are a sure guarantee of the reciprocity of my feelings". He ends with his hand: "your very humble and devoted friend Charles".