an aside: When I was a kid, a parish priest, Father Tony, was a 'guest' at one of Hitler's numerous 'Vacation Camps and Spas'. /s
Yes, that would likely follow Pope Pius XI's change in attitude toward Hitler:
"Pius XI was eager to negotiate concordats with any country that was willing to do so, thinking that written treaties were the best way to protect the Church's rights against governments increasingly inclined to interfere in such matters. Twelve concordats were signed during his reign with various types of governments, including some German state governments, and with Austria. When Adolf Hitler became Chancellor of Germany on 30 January 1933 and asked for a concordat, Pius XI accepted. Negotiations were conducted on his behalf by Cardinal Eugenio Pacelli, who later became Pope Pius XII (1939–1958). The Reichskonkordat was signed by Pacelli and by the German government in June 1933, and included guarantees of liberty for the Church, independence for Catholic organisations and youth groups, and religious teaching in schools.
In February 1936 Hitler sent Pius a telegram congratulating the Pope on the anniversary of his coronation but he responded with criticisms of what was happening in Germany, so much so that von Neurath the foreign secretary wanted to suppress it but Pius insisted it be forwarded."
[BTW - I am not against the Church's position on this matter, I only aim to prepare myself for possible outcomes by researching historical material. And I am open to my references being challenged as historically incorrect. I also note there are many search results based on writings from shortly after WWII and look forward to reading history written with a different political context.]
http://en.wikipedia.org/wiki/Pius_XI