Jacek Lech was born on April 15, 1947, in Mikuszowice, Bielsko-Biala, Slaskie, Poland.
Jacek Malczewski died in 1929.
Jacek Różycki died in 1703.
Jacek Jezierski died in 1805.
Jacek Rybiński died in 1782.
Jacek Nieżychowski died in 2009.
Lech Rzewuski died in 2004.
Lech Walesa is still among the living.
Jacek Karpiński died on 2010-02-21.
Jacek Małachowski died on 1821-03-21.
Roman Jacek Czartoryski died in 1958.
Jacek Kuroń died on 2004-06-17.