In October, 2005, Pope Benedict XVI, a native of Germany, announced the formal declaration of the beatification of Bishop Clemens August Count Von Galen. Bishop von Galen spoke out against the Nazis during World War II in Germany. Below is a YouTube playlist of three sermons delivered against the Nazis by Bishop von Galen during the Third Reich. The sermons are read by Cal Beisang.
From the description by Catholic Digital Studio at YouTube:
In these sermons, Bishop von Galen takes on the Nazis, exposing what they did to innocent German citizens, the Catholic orders, the mentally ill, the old and infirm and how the government was usurping the role of parents in raising children.
There was swift retribution for these sermons. Reichsleiter Bormann advised to Hitler that the Bishop should be taken into custody and be hanged. But, they feared that they’d have to deal with the remainder of the Catholic population in the diocese of Munster. Instead, they attacked those close to the Bishop. Twenty-four secular priests and 13 members of the regular clergy were deported into concentration camps. Ten lost their lives.