Reichsstände
Reichsstände, or the estates of the realm, were the corporate bodies of the Holy Roman Empire that held immediate status and participated in the Imperial Diet (Reichstag). They represented the empire’s territorial and social components and formed the main constitutional layer between the Emperor and the territories. Membership included secular princes (dukes, princes, counts of sovereign territories), ecclesiastical princes (prince-bishops, prince-abbots), the Imperial Knights (Reichsritterschaft) who held immediate lordships, and the Imperial Cities (Reichsstädte) with imperial immediacy and representation in the Diet. The Estates were typically organized in the Diet into three colleges: the College of Electors (Kurfürsten); the College of Princes (Reichsfürsten), containing both secular and ecclesiastical rulers; and the College of Imperial Knights (Reichsritterschaften). The exact composition and voting rights varied over time, but the electors alone possessed the right to elect the Emperor.
Through the Reichstag, the Reichsstände consented to imperial taxation and legislation, participated in foreign and military
Over centuries their political influence fluctuated; they were a key factor in mediating between local autonomy
See also: Holy Roman Empire, Reichstag, Imperial City, Imperial Knight, Imperial immediacy.