Dr. Johann Gruber also known as "Papa Gruber" and "The Saint of Gusen", was an Austrian Roman Catholic priest who was imprisoned in the Mauthausen-Gusen concentration camp

Mauthausen-Gusen concentration camp

Mauthausen Concentration Camp grew to become a large group of Nazi concentration camps that was built around the villages of Mauthausen and Gusen in Upper Austria, roughly east of the city of Linz.Initially a single camp at Mauthausen, it expanded over time and by the summer of 1940, the...

 from 1940 until his death in April 1944. In the concentration camp, Gruber helped many others survive by raising funds from outside the camp and bribing the SS men and kapos

Kapo (concentration camp)

A kapo was a prisoner who worked inside German Nazi concentration camps during World War II in any of certain lower administrative positions. The official Nazi word was Funktionshäftling, or "prisoner functionary", but the Nazis commonly referred to them as kapos.- Etymology :The origin of "kapo"...

in order to organise the delivery of food to starving inmates.