I have just done a quick Google on this...
http://homepages.paradise.net.nz/mischedj/ct_churchandnazis.html
When that pope died in 1939 he was succeeded by Pope Pius XII, who had previously been Vatican Secretary of State. In that role he frequently spoke out against the Nazis, including one notable speech to 250,000 people at Lourdes in 1935 where he said that the Nazis
"are in reality only miserable plagiarists who dress up old errors with new tinsel. It does not make any difference whether they flock to the banners of social revolution, whether they are guided by a false concept of the world and of life, or whether they are possessed by the superstition of a race and blood cult."
As Pope he secretly worked to save as many Jewish lives as possible from the Nazis. Jewish Rabbi Pinchas Lapide wrote that
"The final number of Jewish lives in whose rescue the Catholic Church had been the instrument is thus at least 700,000 souls, but in all probability it is much closer to ... 860,000." (Pinchas E. Lapide, 'Three Popes and the Jews', pp 227-228).
This is more than all other Jewish relief organizations in Europe, combined, were able to save.
He who acts as his namesake should take his own advice...