József_Kelen
József Kelen (born: József Klein in Nagybocskó; January 12, 1892 – March 19, 1938 in Moscow) was a Hungarian mechanical engineer, deputy commissar of the Soviet republic of Hungary, then commissar of the Soviet republic of Hungary, brother of communist politician Ottó Korvin, cousin of Pál Hajdu, husband of the politician Jolán Kelen and the founder of the Communist Party of Hungary in Budapest.[1][2] He was also the brother of Ottó Korvin.[3]