Artyom Fyodorovich Sergeyev (Russian: Артём Фёдорович Сергеев; 5 March 1921 – 15 January 2008) was the adopted son of Joseph Stalin.
Sergeyev's biological father, Fyodor Sergeyev, a close friend of Stalin, died in an Aerowagon train derailment in 1921.
His military service began in 1938 at the age of 17 and he was active in fighting against German troops in World War II.
He was appointed lieutenant colonel at the age of 23 and continued serving in the military after the war.
[1] In 1960, Sergeyev was given charge of air defenses surrounding weapons factories in Dnepropetrosk.