Vladimir Ćopić
Vladimir "Senjko" Ćopić was a Croatian communist and leader of the Communist Party of Yugoslavia from April 1919 to August 1920. During the Spanish Civil War, in the period from 1937 to mid-1938, he was the commander of the XV International Brigade.
Like General "Gal", he had been conscripted into the Austro-Hungarian army during World War I, and subsequently captured by the Russians. He was killed in Stalinist purges in 1939 along with many other leading Yugoslav communists. He was rehabilitated on June 10, 1958 by a decision of the Supreme Court of the Soviet Union.
His brother, Milan Ćopić, was in the International Brigades' prison at Camp Lucász.