Seminarian in the diocese of Wlaoclawek, Poland. Arrested by Nazi officials in 1939 along with his seminary teachers, and lodged in the concentration camp at Dachau, Bavaria, Germany, which had a special section for Catholic clergy. He was offered his freedom if he would renounce his calling to the priesthood; he declined. Martyr.
- “Blessed Bronislao Kostkowski“. Saints.SQPN.com. 31 October 2014. Web. 20 December 2014. <>