By 1523, the French situation had entirely collapsed. The death of Doge Antonio Grimani brought Andrea Gritti, a veteran of the War of the League of Cambrai, to power in Venice. He quickly began negotiations with the Emperor and on 29 July concluded the Treaty of Worms, which removed the Republic from the war. Bourbon continued his scheming with Charles, offering to begin a rebellion against Francis in exchange for money and German troops. When Francis, who was aware of the plot, summoned him to Lyon in October, he feigned illness and fled to the Imperial city of Besançon. Enraged, Francis ordered the execution of as many of Bourbon's associates as he could capture, but the Duke himself, having rejected a final offer of reconciliation, openly entered the Emperor's service.