Leonid Sobolev died in 1913.
Leonid Sobolev was born in 1844.
Arkady Sobolev died in 1964.
Sergei Sobolev died on 1989-01-03.
Vsevolod Sobolev died on July 24, 2011, in Moscow, Russia.
Vsevolod Sobolev's birth name is Vsevolod Nikolaevitch Sobolev.
Vyacheslav Sobolev's birth name is Vyacheslav Vasilievich Sobolev.
Leonid Gissen died in 2005.
Leonid Haydamaka died in 1991.
Leonid Sherwood died in 1954.
Leonid Tsypkin died in 1982.
Leonid Filatov died in 2003.
Leonid Malashkin died in 1902.