Genealogy / Help - looking for: Polish artist - Jan Zielecki [11]

Hello, I'm from Poland. I have information about Jan Zielecki (John Zielecki). Maybe you already know- He died in 2004. I know this, because my father was very familiar with the younger brother of John (Chrisopher Zielecki, he also died).

p.s. sorry, If I made grammatical error- my english isn't good

Best wishes,
Raisa