Caption:
Louis Adolph Peter, 1st Prince of Sayn-Wittgenstein-Ludwigsburg-Berleburg, Ludwig Adolf Peter Furst zu Sayn-Wittgenstein-Berleburg, 1769 - 1843, better known as Peter Wittgenstein in English, was a Prince of the German dynasty Sayn-Wittgenstein and Field Marshal in the Imperial Russian Army during the Napoleonic wars.