Question: When did Ekaterina Voroshilova's husband die?
Sentence (from "Kliment Voroshilov"): He was one of the original five Marshals of the Soviet Union (the highest military rank of the Soviet Union), along with Chief of the General Staff of the Red Army Alexander Yegorov, and three senior commanders, Vasily Blyukher, Semyon Budyonny, and Mikhail Tukhachevsky.
Relevant evidence: No