Augsburg on 19 August 1518, had become hostile towards him after Hans' marriage to Ursula von Hutten. Ursula was the daughter of Thumb von Neuburg, the marshal and one of the most influential men in the ducal court, and Hans von Hutten was the cousin of Ulrich von Hutten, a famous humanist and knight who was also a firebrand publicist, and son of Ludwig von Hutten, a Franconian knight who had also served in the ducal court and was of the von Huttens, one of the most powerful lower noble families in the entire Duchy. The political fallout of this murder resulted in the immediate resignation of 18 noblemen from Ulrich's court, demands from the von Huttens for financial compensation, and fiery, printed attacks by Ulrich von Hutten. The second event was the flight of Ulrich's wife, Sabine of Bavaria, back to her family in November 1515 along with Dietrich Spät, one of Ulrich's advisers. Overnight she had unmade a match Emperor Maximilian I had arranged with her father, Duke Alphrecht. She had complained bitterly about the mistreatment she had experienced by Ulrich, of von Hutten's murder, and of Ulrich's refusal to pay off her debts. Her immediate family demanded immediate compensation and for Ulrich to be expelled, and to this end appealed to the Estates but were rebuked, despite Ulrich's now widespread unpopularity out of loyalty to him and a lack of influence in Württemberg on Sabine's part. The Bavarians resorted to attacking the Duchy, causing Maximilian I to intervene and call a diet in Stuttgart on 18 September 1515 to limit Ulrich's power and to create a balanced system of government. This resulted in the Treaty of Blaubeuren, which mandated that a seven-member regency would rule the Duchy for a period of six years consisting of the Landhofmeister, the Chancellor, a prelate, two nobles, and two burghers, with an eighth regent to be named by the Emperor. Ulrich himself was to be dependent on this regency for counsel, and he no longer had control of the Duchy, a proposition he was not in agreement with. Ulrich charged many leading members of the Ehrbarkeit, and of them killed brothers Conrad and Sebastion Breuning, Conrad Vaut, the bailiff of Cannstatt, and Hans Stickel, the Burgomaster of Stuttgart. After the executions of the Breuning brothers, Maximilian attempted to call another diet to enforce the Treaty of Blaubeuren, but it was here