Russian Emperor, Nicholas II in a Circassian Fashion.
In this picture (https://twitter.com/_sosruko_), he is wearing the Circassian Cherkesska.
They were not convinced with the acquisition of the Circassian homeland only, but also followed that by the acquisition of the Circassian national and traditional costumes and other national gains.
“Nicholas II was the last tsar of Russia under Romanov rule. His poor handling of Bloody Sunday and Russia’s role in World War I led to his abdication and execution.” (http://www.biography.com/people/nicholas-ii-21032713)
The Romanov family and after what was done with the Circassians and other nations of the Caucasus, had learnt the hard way that “snitches end up in ditches.”