Alexei Nikolaevich, Tsarevich of Russia Biography

Alexei Nikolaevich (Russian: Алексе́й Никола́евич) (12 August 1904 [O.S. 30 July] – 17 July 1918) of the House of Romanov, was the Tsarevich[note 1] and heir apparent to the throne of the Russian Empire. He was the youngest child and only son of Emperor Nicholas II and Empress Alexandra Feodorovna. He was born with hemophilia; his mother's reliance on the faith healer Grigori Rasputin to treat the disease helped bring about the end of the Romanov dynasty.