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Alexei Nikolaevich was born on August 12, 1904. He was the youngest child and only son of Tsar Nicholas II and Empress Alexandra of Russia. Alexei suffered from hemophilia, a genetic disorder that affects blood clotting. His illness caused him great pain and suffering throughout his life. Despite his condition, Alexei was a lively and intelligent child who enjoyed spending time with his family and playing with his toys.