The imperial ban imposed by the Emperor Rudolf II on the city of Donauwörth after an anti-Catholic riot was one of the incidents leading to the Thirty Years' War.
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He participated in the siege of Gotha, which was necessary to arrest the deposed Duke John Frederick II of Saxe-Coburg-Eisenach, who had been banned for failure to deliver Wilhelm von Grumbach at the Emperor's demand.
Complicating Frederick II's hold over Austria was his long-standing quarrel with Frederick II, Holy Roman Emperor, during which he was placed under an imperial ban.