were charged for high treason, punishable by death under Article 64 of the Penal code of the Russian Soviet Federative Socialist Republic (RSFSR). In a trial that took place from 15 to 24 December 1970, Mark Dymshits (age: 43) and Eduard Kuznetsov (age: 30) received a death sentence.<ref name="Mozorov-1999">Mozorov, Boris (Ed.) (1999). Documents on Soviet Jewish Emigration. London; Portland, OR: Frank Cass. p. 90, note 3.</ref> The prison sentences received by nine other participants were as follows: Sylva Zalmanson (age: 25; then Kuznetsov's wife, and the only woman on trial), 10 years; Yosef Mendelevitch (age: 23) and Yuri Fedorov, 15 years; Aleksey Murzhenko (age: 27 or 28), 14 years; Arie (Leib) Hanoch (age: 25), 13 years; Anatoli Altmann (age: 28), 12 years; Boris Penson (age: 23), 10 years; Israel Zalmanson (age: 21), 8 years; and Mendel Bodnya (age: 32), 4 years."Proceedings of the Leningrad Hijacking Trial." In: Eduard Kuznetsov (1975). Prison Diaries. Translated from the Russian by Howard Spier. New York: Stein and Day. pp. 217–254. The account is described as having been "recorded by a relative of one of the accused who was present in the courtroom" (p. 217); ages or years of birth, as well as other biographical details, are included for most of the defendants. Wolf Zalmanson (age: 31), brother of Sylva and Israel Zalmanson, who was a lieutenant in the Soviet army, was tried separately by a military tribunal and, on 2 January 1971, sentenced to 10 years imprisonment. After international protests the Judicial Commission for Criminal Cases of the RSFSR Supreme Court in Moscow considered an appeal of the cases, and modified the sentences, commuting the capital sentences of Dymshits and Kuznetsov to 15 years in prison, and reducing the length of prison terms for several other defendants by two to five years. Strong international condemnations caused the Soviet authorities to significantly increase the emigration quota. In the years 1960 through 1970, only 4,000 people had (legally) emigrated from the USSR; after the trial, in the period from 1971 to 1980, 347,100 people received a visa to leave the USSR, of whom 245,951 were Jews. In August 1974, Sylva Zalmanson was released as part of an Israeli secret Soviet prisoner exchange with the spy Yuri Linov that took place in Berlin, after which she immigrated to Israel, arriving in September. In the following years she advocated for the release of her husband, Edward Kuznetsov, and