Diet of Regensburg (1623)

The Diet of Regensburg of 1623 was a meeting of the Imperial States of the Holy Roman Empire (or Fürstentag) convened by Holy Roman Emperor Ferdinand II. The meeting was not technically an imperial diet in the full sense, but a convention of princes or Deputationstag – a looser constitutional format giving the emperor greater leeway to make decisions without being bound by formal procedures.^[1] At the meeting, the Electorate of the Palatinate was transferred to Maximilian I of Bavaria. The meeting marked the high-water mark of imperial power during the Thirty Years' War.