Holy Roman Empire

The Confoederatio cum principibus ecclesiasticis ("Treaty with the princes of the church") was decreed on 26 April 1220 by Frederick II as a concession to the German bishops in return for their co-operation in the election of his son Henry as King.

Prince of the Holy Roman Empire (German: Reichsfürst, Latin: princeps imperii, see also: Fürst) was a title attributed to a hereditary ruler, nobleman or prelate recognised as such by the Holy Roman Emperor.

A golden bull or chrysobull was a decree issued by Byzantine Emperors and later by monarchs in Europe during the Middle Ages and Renaissance, most notably by the Holy Roman Emperors.

The League of the Rhine (also known as the Erste Rheinbund, First Rhine-Bund; or the Rheinische Allianz - Rhenish Alliance) was a defensive union of more than 50 German princes and their cities along the River Rhine, formed on 14 August 1658 by Louis XIV of France and negotiated by Cardinal Mazarin (then de facto prime minister of France), Hugues de Lionne and Johann Philipp von Schönborn (Elector of Mainz and Chancellor of the Empire).

German mediatization (English /miːdiətaɪˈzeɪʃən/; German: deutsche Mediatisierung) was the major territorial restructuring that took place between 1802 and 1814 in Germany and the surrounding region (until 1806 the Holy Roman Empire) by means of the mass mediatization and secularization of a large number of Imperial Estates: ecclesiastical principalities, free imperial cities, secular principalities and other minor self-ruling entities that lost their independent status and were absorbed into the remaining states.

The Imperial Register (German: Reichsmatrikel) was a list of the Imperial Estates of the Holy Roman Empire that specified the precise numbers of troops they had to supply to the Imperial Army and/or the financial support they had to make available to sustain the Army.

The Tetrapolitan Confession, also called the Confessio Tetrapolitana, Strasbourg Confession, or Swabian Confession, was the official confession of the followers of Huldrych Zwingli and the first confession of the reformed church.

The Reichskammergericht (English: Imperial Chamber Court Latin: Iudicium imperii) was one of two highest judicial institutions in the Holy Roman Empire, the other one being the Aulic Council in Vienna.

The imperial ban (German: Reichsacht) was a form of outlawry in the Holy Roman Empire.

Imperial immediacy (German: Reichsfreiheit or Reichsunmittelbarkeit) was a privileged constitutional and political status rooted in German feudal law under which the Imperial estates of the Holy Roman Empire such as Imperial cities, prince-bishoprics and secular principalities, and individuals such as the Imperial knights, were declared free from the authority of any local lord and placed under the direct ("immediate") authority of the Emperor, and later of the institutions of the Empire such as the Diet (Reichstag), the Imperial Chamber of Justice and the Aulic Council.

The term Kaiserpfalz (German: [ˈkaɪzɐˌpfalts], "imperial palace") or Königspfalz (German: [ˈkøːnɪçsˌpfalts], "royal palace") refers to a number of castles across the Holy Roman Empire that served as temporary, secondary seats of power for the Holy Roman Emperor in the Early and High Middle Ages.

The Lusatian League (German: Oberlausitzer Sechsstädtebund; Czech: Šestiměstí; Polish: Związek Sześciu Miast) was a historical alliance of six towns in the Bohemian (1346–1635), later Saxon (1635–1815) region of Upper Lusatia, that existed from 1346 until 1815.

Ostsiedlung (German pronunciation: [ˈɔstˌziːdlʊŋ], literally east settling), in English called the German eastward expansion, was the medieval eastward migration and settlement of German-speaking people from the Holy Roman Empire, especially its southern and western portions, into less-populated regions of eastern Central Europe and western Eastern Europe.

The Römer (German surname, "Roman") is a medieval building in the Altstadt of Frankfurt am Main, Germany, and one of the city's most important landmarks.

The Augsburg Interim ("Declaration of His Roman Imperial Majesty on the Observance of Religion Within the Holy Empire Until the Decision of the General Council") is the general term given to an imperial decree ordered on 15 May 1548 at the 1548 Diet of Augsburg, after Charles V, Holy Roman Emperor, had defeated the forces of the Schmalkaldic League in the Schmalkaldic War of 1546/47.

The Décapole (Dekapolis or German: Zehnstädtebund) was an alliance formed in 1354 by ten Imperial cities of the Holy Roman Empire in the Alsace region to maintain their rights.

Kipper und Wipper (German: Kipper- und Wipperzeit, literally "Tipper and See-saw") is the name given to a financial crisis during the start of the Thirty Years' War (1618–48).

Kreuzlingen Abbey (Stift Kreuzlingen or Kloster Kreuzlingen), in Kreuzlingen in Switzerland, on the border with Germany, was founded in about 1125 by Ulrich I of Dillingen, Bishop of Constance, as a house of Augustinian Canons.