Conversation so far:
what russian leader was overthrown in the revolution of 1917
In 1917, Tsar Nicholas II was forced to abdicate after the February Revolution and Aleksandr Kerensky's government was overthrown by the Bolsheviks in the October Revolution.
was nicholas the second of russia killed in the february revolution
Czar Nicholas II and the Romanovs were executed by Bolsheviks in July 1918.
who in the romanov family was executed first
Nicholas II of Russia was the first to die.

Question: how did the former tsar die
Self-contained rewrite: how did nicholas the second of russia die