Vladislav Volkov, Russian engineer and astronaut (d. 1971)
Vladislav Nikolayevich Volkov (Russian: Владисла́в Никола́евич Во́лков; 23 November 1935 – 29 June 1971) was a Soviet cosmonaut who flew on the Soyuz 7 and Soyuz 11 missions. The second mission terminated fatally. Volkov and the two other crew members were asphyxiated on reentry, the only three people to have died in outer space.