Imperial Diet of the Holy Roman Empire

Timeline

1. 1495–1555Worms · Rhineland-PalatinateThe 1495 Diet of Worms established public peace, the Imperial Chamber Court, and a tiered representation mechanism, with electors, estates, and cities deliberating in separate colleges, laying the constitutional framework for later Imperial Diet operations.
2. 1591Regensburg · BavariaThough long resident in Prague, Rudolf II in the 1590s still coordinated through the Imperial Diet at Regensburg military taxes for the war against the Ottomans, Catholic revival policies, and disputes over princely territories, with electors and estate representatives contesting imperial authority and local autonomy.
3. c. 1600–1618Holy Roman Empire · Holy Roman EmpireAround 1600 the Imperial Diet repeatedly deadlocked over religious conformity, electoral succession, and Bohemian affairs; the confessional tensions accumulated in the 1590s were not resolved through Diet mechanisms, planting an institutional seed for the outbreak of the Thirty Years' War in 1618.