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.
Alexander II of Russia
On the evening of 5 February 1880 Stephan Khalturin, also from Narodnaya Volya, set off a timed charge under the dining room of the Winter Palace, right in the resting room of the guards a story below, killing 11 people and wounding 30 others. The "New York Times" (March 4, 1880) reported "the dynamite used was enclosed in an iron box, and exploded by a system of clockwork used by the man Thomas in Bremen some years ago." However, dinner had been delayed by the late arrival of the tsar's nephew, the Prince of Bulgaria, so the tsar and his family were not in the dining room at the time of the explosion and were unharmed.