About Alexei Nikolaevich, Tsarevich of Russia
[Wikidata] Last Russian tsesarevich and heir apparent of the Russian Empire (1904–1918); youngest child of Nicholas II and Alexandra Feodorovna (Alix of Hesse)... | [Wikipedia] Alexei Nikolaevich Romanov was the last Russian tsesarevich. 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.