From the Jewish Virtual Library
Pope Pius XII & the Holocaust
From the article:
Pope Pius XII’s (1876-1958) actions during the Holocaust remain controversial. For much of the war, he maintained a public front of indifference and remained silent while German atrocities were committed. He refused pleas for help on the grounds of neutrality, while making statements condemning injustices in general. Privately, he sheltered a small number of Jews and spoke to a few select officials, encouraging them to help the Jews.