Aleksey Nikolaevich, Tsarevich of Russia

Aleksey Nikolaevich Romanov (12 August 1904 - 17 July 1918) was the only son and fifth child of Nikolai II and Aleksandra Feodorovna, and the younger brother of four sisters; Olga Nikolaevna, Tatyana Nikolaevna, Mariya Nikolaevna, and Anastasiya Nikolaevna. He was born to the House of Romanov, and was the last Heir Apparent and Tsarevich to the Russian Throne. He was born with Haemophilia Type B that was inherited from his mother.