Unrelated to your question Richard but since there is a free-use Wiki pic I thought it should be posted.
The last Emir of Bukhara
Mohammed Alim Khan
(1880-1944) of the Manghit dynasty, reigned 1911-1920
The last direct descendant of Genghis Khan to serve as a national ruler
Overthrown by Bolshevik troops in 1920 and fled to Afghanistan
pic courtesy of Wikipedia and is free of copyright