Ботман - Портрет фельдмаршала графа Фабиана Вильгельмовича фон дер Остен Сакена (1860-1870), Georg von Bothmann, circa 1870

The painting "portrait of field marshal count fabian wilhelmovich von der osten saken" is by artist yegor (georg) ivanovich botman, russian court painter, portraitist, academician of the imperial academy of arts. Date: circa 1870.