https://en.wikipedia.org/wiki/Marshal_of_the_Soviet_Union
The military rank of Marshal of the Soviet Union was established by a decree of the Soviet Cabinet, the Council of People's Commissars (Sovnarkom), on 22 September 1935. On 20 November, the rank was conferred on five people: People's Commissar of Defence and veteran Bolshevik Kliment Voroshilov, Chief of the General Staff of the Red Army Alexander Yegorov, …