Photo shows Ferdinand I, Czar of Bulgaria, surrounded by men in uniform near a train, probably during First Balkan War and siege of Adrianople, Nov. 1912-March 1913. (Source: Flickr Commons project, 2008, and B More
Photograph shows Russian emperor Nicholas II (1868-1918) standing next to a car with Russian general Grand Duke Nikolay Nikolayevich Romanov (1856-1929) who is standing in the car, during World War I. (Source: More
Erzherzog Karl war von Juni 1916 an, Oberkommandierender eines Teilabschnittes der Ostfront und befehligte mehrere Armeen zwischen Brody und den Karpaten. Im Rahmen dieses Kommandos inspizierte Erzherzog Karl s More
Russian Soldiers, WWI front lines, marching. Public domain reproduction of colorized lantern slide, free to use, no copyright restrictions image - Picryl description