Nicholas II of Russia
On 1 March 1881, following the assassination of his grandfather, Tsar Alexander II, Nicholas became heir apparent upon his father's ascension as Alexander III. Nicholas and his other family members bore witness to Alexander II's death, having been present at the Winter Palace in Saint Petersburg, where he was brought after the attack. For security reasons, the new tsar and his family relocated their primary residence to the Gatchina Palace outside the city, only entering the capital for various ceremonial functions. On such occasions, Alexander III and his family occupied the nearby Anichkov Palace.
Pervomartovtsy
Alexander II was killed on March 1, 1881 by a bomb, thrown by Ignacy Hryniewiecki. Hryniewiecki wounded himself fatally in the assassination; Nikolai Sablin committed suicide. Accomplices - Zhelyabov, Perovskaya, Nikolai Kibalchich, Gesya Gelfman, Timofei Mikhailov, Nikolai Rysakov - were tried by the Special Tribunal of the Ruling Senate on March 26-29 and sentenced to death by hanging. On April 3, 1881 five Pervomartovtsy were hanged (except for Gelfman, whose execution had been postponed due to her pregnancy. Her execution was later replaced with katorga for indefinite period of time; she nevertheless died of a post-natal complication in prison).