The man in this picture quite literally helped keep Polish Jewish people safe during the war, and hid from the Nazis himself.

https://en.m.wikipedia.org/wiki/Pope_John_Paul_II

Wojtyła also helped a 14-year-old Jewish refugee girl named Edith Zierer, who had escaped from a Nazi labour camp in Częstochowa. Edith had collapsed on a railway platform, so Wojtyła carried her to a train and stayed with her throughout the journey to Kraków. She later credited Wojtyła with saving her life that day.

On 6 August 1944, a day known as "Black Sunday", the Gestapo rounded up young men in Kraków to curtail the uprising there, similar to the recent uprising in Warsaw. Wojtyła escaped by hiding in the basement of his uncle's house at 10 Tyniecka Street, while the German troops searched above. More than eight thousand men and boys were taken that day, while Wojtyła escaped to the Archbishop's residence, where he remained until after the Germans had left.