czar-nicholas-ii-abdicates

On March 15, 1917 Nicholas II, the last Russian Tsar abdicatesd and nominated his brother Grand Duke Michael to succeed him. From the article:

"Czar Nicholas II abdicates Russian throne
During the February Revolution, Czar Nicholas II, ruler of Russia since 1894, is forced to abdicate the throne by the Petrograd insurgents, and a provincial government is installed in his place.

Crowned on May 26, 1894, Nicholas was neither trained nor inclined to rule, which did not help the autocracy he sought to preserve in an era desperate for change. The disastrous outcome of the Russo-Japanese War led to the Russian Revolution of 1905, which the czar diffused only after signing a manifesto promising representative government and basic civil liberties in Russia. However, Nicholas soon retracted most of these concessions, and the Bolsheviks and other revolutionary groups won wide support. In 1914, Nicholas led his country into another costly war, and discontent in Russia grew as food became scarce, soldiers became war-weary, and devastating defeats on the eastern front demonstrated the czar’s ineffectual leadership.

In March 1917, the army garrison at Petrograd joined striking workers in demanding socialist reforms, and Czar Nicholas II was forced to abdicate. Nicholas and his family were first held at the Czarskoye Selo palace, then in the Yekaterinburg palace near Tobolsk. In July 1918, the advance of counterrevolutionary forces caused the Yekaterinburg Soviet forces to fear that Nicholas might be rescued. After a secret meeting, a death sentence was passed on the imperial family, and Nicholas, his wife, his children, and several of their servants were gunned down on the night of July 16."