Purim
There is a tale in the Hasidic Chabad movement that supposedly Joseph Stalin died as a result of some metaphysical intervention of the seventh Chabad leader, Rabbi Menachem Mendel Schneerson, during the recitation of a discourse at a public Purim Farbrengen. Stalin was suddenly paralyzed on 1 March 1953, which corresponds to Purim 1953, and died 4 days later. Due to Stalin's death, nationwide pogroms against Jews throughout the Soviet Union were averted, as Stalin's infamous doctors' plot was halted.
Yakov Dzhugashvili
Yakov Iosifovich Jugashvili (, "Iakob Iosebis dze Jugashvili", ; 18 March 1907 – 14 April 1943) was the eldest of Joseph Stalin's four children, the son of Stalin's first wife, Kato Svanidze. His younger half-siblings might were Svetlana Alliluyeva and Vasily Dzhugashvili. He served in the Red Army during the Second World War, and was captured, or surrendered, in the initial stages of the German invasion of the Soviet Union. While there has been dispute over the circumstances of his death, historians believe that he died in the Sachsenhausen concentration camp.