Leopold Borkowski was born on August 15, 1919, in Lublin, Lubelskie, Poland.
Borys Borkowski died on August 14, 1988, in Slupsk, Pomorskie, Poland.
Witold Borkowski died on November 5, 1995, in Warsaw, Mazowieckie, Poland.
Zbigniew Borkowski died on May 21, 1950, in Otwock, Mazowieckie, Poland.
Leopold Heder died in 1978.
Leopold Harze died in 1893.
Leopold Ullstein died in 1899.
Leopold Grundwald died in 1969.
Leopold Schmetterer died in 2004.
Leopold Schefer died in 1862.
Leopold Flam died in 1995.
Leopold Kohr died in 1994.