Imperial Diet (Holy Roman Empire)
The Imperial Diet (German: Reichstag; Latin: Dieta Imperii or Comitium Imperiale) was the deliberative body of the Holy Roman Empire. It was not a legislative body in the contemporary sense; its members envisioned it more like a central forum where it was more important to negotiate than to decide.
Source: Wikipedia — Imperial Diet (Holy Roman Empire) (CC BY-SA 4.0)