She was very pious and able to exert influence in her brother on religious matters. In 1509, relying on the influence of Kunigunde, and the Cologne Dominicans, the anti-Jewish agitator Johannes Pfefferkorn was authorized by Maximilian to confiscate all offending Jewish books (including prayer books), except the Bible.
A devout woman exerted influence over her brother in religious matters. In 1509, with the help of Kunigunde and the Cologne Dominicans, anti-Jewish agitator Johannes Pfefferkorn was granted permission by Maximilian to confiscate all Jewish books deemed offensive, except for the Bible.