Today, 29 May, we commemorate Bl. Joseph Kowalski.
He was a Salesian priest who was imprisoned in the concentration camp in Auschwitz. While an inmate, he willed to encourage and strengthen his prisoner-friends. After being discovered with a rosary, he refused to step on it, which resulted to his instant martyrdom.
St. John Paul II beatified him on 13 June 1999 in Warsaw, with a group of 108 Polish martyrs, victims of the Nazi persecution during the second world war.