Marian Sobkowiak was born on 7 December 1924 in Gostyn, Voivodeship Greater Poland, Poland. He died on 10 February 2017 in Gostyn, Voivodeship Greater Poland, Poland.
During World War II Marian Sobkowiak was a member of the Secret Military Organization "Black Legion". Toward the end he was prisoner of the concentration camps Groß-Rosen and Sachsenhausen.