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.
Olga Constantinovna of Russia
On 2 October 1920, King Alexander was bitten by a monkey during a walk through the gardens at Tatoi. The wound became infected and Alexander developed septicemia. On 19 October, he began to rave and called for his mother, but the Greek government refused to allow Queen Sophia to return to Greece. Worried about her son, and knowing that his grandmother was the only other royal still in favor with the Venizelists, Sophia asked Olga to go to Athens to care for Alexander. After several days of negotiations, the dowager queen obtained permission to return to Greece but, delayed by rough seas, she arrived twelve hours after her grandson's death on 25 October. On 29 October, Alexander was buried at Tatoi; Olga was the only member of the royal family at the funeral.