Louis, Duke of Blacas

Louis de Blacas d'Aulps, 2nd Duke of Blacas
Louis Charles de Blacas d´Áulps, Lithograph by Josef Kriehuber, 1851

Louis Charles Pierre Casimir de Blacas d'Aulps, 2nd Duke of Blacas, 2nd Prince of Blacas (15 April 1815, London – 10 February 1866, Venice) was a French nobleman and antiquarian.