Yes, Pius XII.
Read “Greatness Dishonored”, by O’Carroll
Or “The Myth of Hitler’s Pope:How Pope Pius XII Rescued Jews from the Nazis”, by Rabbi David G. Dalin
See #5.
Of course Pius XII was playing it coy with Hitler, while he was running an Underground Railroad right under Hitler’s nose. And who knows what support to resistance groups.
Mossad has extensively investigate each of the allegations against Pius XII, and found them to be bogus.
Pius XII was living dangerously and defying tyranny, much like when John Paul II was in Poland defying both the Nazis and the Communists.