Complex sentence: Zinaida Volkova's daughter Aleksandra remained in the USSR and was raised by her father, Sakhar Moglin and, then after his exile in 1932, her grandmother, Aleksandra Sokolovskaya, who was exiled in 1935 and perished in the labor camps.
Split into simpler sentences: Zinaida Volkova's daughter Aleksandra remained in the USSR and was raised by her father, Zakhar Moglin. After Moglin's exile in 1932, she was taken care of by her grandmother, Aleksandra Sokolovskaya, who was in turn exiled in 1935 and perished in the labor camps.