Alexei Nikolaevich (Russian: Алексей Николаевич Романов, romanized: Aleksey Nikolaevich Romanov; 12 August [O.S. 30 July] 1904 – 17 July 1918) was the last Russian tsesarevich (heir apparent). He was the youngest child and only son of Tsar Nicholas II and Tsarina Alexandra Feodorovna. He was born with haemophilia, which his parents tried treating with the methods of peasant faith healer Grigori Rasputin.