Marian Kociniak was born on January 11, 1936 in Warsaw, Mazowieckie, Poland. He was an actor, known for Pan Tadeusz (1999), Teatr Telewizji (1953) and Jak rozpetalem druga wojne swiatowa (1970). He was previously married to Grazyna Kociniak. He died on March 17, 2016 in Warsaw, Mazowieckie, Poland.