Stalin married his first wife, Ekaterina Svanidze, in 1906. According to Montefiore, theirs was "a true love match"; Volkogonov suggested that she was "probably the one human being he had really loved". When she died, Stalin said: "This creature softened my heart of stone." They had a son, Yakov, who often frustrated and annoyed Stalin. Yakov had a daughter, Galina, before fighting for the Red Army in the Second World War. He was captured by the German Army and then committed suicide.