Paul I of Russia
Paul remained overshadowed by his mother for most of his life. His reign lasted four years, ending with his assassination by conspirators. He adopted the laws of succession to the Russian throne—rules that lasted until the end of the Romanov dynasty and of the Russian Empire. He also intervened in the French Revolutionary Wars and, toward the end of his reign, added Kartli and Kakheti in Eastern Georgia into the empire which was confirmed by his son and successor Alexander I.
Nicholas II of Russia
Russia was defeated in the 1904–1905 Russo-Japanese War, which saw the annihilation of the reinforcing Russian Baltic Fleet after being sent on its round-the-world cruise at the naval Battle of Tsushima, off the coasts of Korea and Japan, the loss of Russian influence over Manchuria and Korea, and the Japanese annexation to the north of South Sakhalin Island. The Anglo-Russian Entente was designed to counter the German Empire's attempts to gain influence in the Middle East, but it also ended the Great Game of confrontation between Russia and the United Kingdom. When all Russian diplomatic efforts to prevent the First World War (1914–1918) failed, Nicholas approved the Imperial Russian Army mobilization on 30 July 1914, which gave Imperial Germany formal grounds to declare war on Russia on 1 August 1914. An estimated 3.3 million Russians were killed in the First World War. The Imperial Russian Army's severe losses, the High Command's incompetent management of the war efforts, and lack of food and supplies on the home front were all leading causes of the fall of the House of Romanov.