Felix Edmundovich Dzerzhinsky (Russian: Фе́ликс Эдму́ндович Дзержи́нский; Polish: Feliks Dzierżyński ; 20 July 1926), nicknamed Iron Felix, was a Soviet statesman of Polish descent and a prominent member of revolutionary movements. His party pseudonyms were Yatsek, Yakub, Pereplyotchik (meaning "bookbinder"), Franek, Astronom, Yuzef and Domanski.