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 I of Serbia
The conspirators searched the palace and eventually discovered the royal couple and murdered them in the early morning of June 11, 1903. King Alexander and Queen Draga were shot and their bodies mutilated and disemboweled and, according to eyewitness accounts, thrown from a second floor window of the palace onto piles of garden manure. The King was only 26 years old at the time of his death. King Alexander and Queen Draga were buried in the crypt of St. Mark's Church, Belgrade.