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.
Nikolay Kobozev
Nikolay Kobozev's home in Berdiansk was visited by three heirs to the Russian throne. In the 1830-s he housed Grand Duke Alexander, the future Emperor Alexander II. In 1863, Alexander II' s son, Nikolay, stayed at his house in Berdiansk. In 1866 Grand Duke Konstantin Nikolaevich visited Kobozev's home. In 1881, the members of the Narodnaya Volya assassinated Alexander II. Strangely enough, one of the organizers, Yuriy Bogdanovich, acted under the alias of Kobozev.