A portrait of Montenegrin vojvoda Mirko Petrović-Njegoš in the 1864 travel book The Eastern Shores of the Adriatic in 1863. With a visit to Montenegro by Emily Anne Beaufort [Unknown authorUnknown author / Beaufort, Emily Anne (1864) The Eastern Shores of the Adriatic in 1863. With a visit to Montenegro, London: Richard Bentley, p. 149 -- CC0 -- http://commons.wikimedia.org/wiki/File:Vojvoda Mirko Petrović-Njegoš (1863, Beaufort).png]