He was born in Vilnius in 1915.[1] He became a Franciscan in 1934, taking the name Brother Antonin. He was ordained a priest in 1939 and became vicar to Maximilian Kolbe. He and Kolbe were both arrested by the Germans in 1941 and Antonin was imprisoned. He boosted the other prisoners' morale and gave them his rations, before being deported to Auschwitz Concentration Camp, where he contracted typhoid fever. This proved fatal and he died on 18 May 1941.[2][1]