He committed suicide after losing the Battle of Tannenberg.
Paul Rennenkampf
Georgy Zhukov
Alexander Samsonov
Grand Duke Nikolai Nikolaevich
Alexander Samsonov. Tannenberg, the first major battle of the eastern front in WWI saw the Germans turn back a serious Russian threat to East Prussia. Samsonov’s Second Army was surrounded and forced to surrender. Though Samsonov escaped the encirclement, he could not face his czar.