Sergei Navashin died in 1930.
Sergei Navashin was born in 1857.
Sergei Navashin discovered double fertilisation in plants.
Sergei Agapitov died in 1996.
Sergei Nolbandov died in 1971.
Sergei Siniakov died in 1983.
Sergei Orekhov died in 1998.
Sergei Toropov died in 1990.
Sergei Chavain died in 1942.
Sergei Alferaki died in 1918.
Sergei Soldatov died in 2003.
Sergei Vonsovsky died in 1998.
Sergei Tretyakov died in 1937.