Leonhard Merzin was born on February 10, 1934, in Voore, Tartumaa, Estonia.
Karl Leonhard died in 1988.
Leonhard Schmitz died in 1890.
Leonhard Koeppe died in 1969.
Rudolf Leonhard died in 1953.
Leonhard Kleber died in 1556.
Leonhard Hutter died in 1616.
Leonhard Thurneysser died in 1595.
Leonhard Tietz died in 1914.
Leonhard Dientzenhofer died in 1707.
Leonhard Schiemer died in 1528.
Leonhard Gall died in 1952.