Grand Duke Michael Alexandrovich of Russia was the youngest son and fifth child of Emperor Alexander III of Russia and youngest brother of Nicholas II. He was designated Emperor of Russia after his brother abdicated in 1917 and proclaimed him "Emperor Michael II", but Michael declined to take power a day later. Born: December 4, 1878 Died: June 12, 1918 In office: March 15, 1917 – March 16, 1917 Wiki link