Hitler's promise to build Germany on a Christian foundation on March 21, 1933 led several monks to hang a picture of Hitler in the abbey and to unfurl the black white red flag of the bygone Kaiserreich.
The suggestion of a possible "Ultraimperialismus" is normally attributed to Karl Kautsky, the leading theoretician of the Social Democratic Party of Germany (SPD) in the era of the Kaiserreich.
Alfred Kneppe and Josef Wiesehöfer, Friedrich Münzer: Ein Althistoriker zwischen Kaiserreich und Nationalsozialismus, Bonn 1983.