Medieval Germany

Guelders or Gueldres (Dutch: Gelre, German: Geldern) is a historical county, later duchy of the Holy Roman Empire, located in the Low Countries.

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 Duchy of Bavaria (German: Herzogtum Bayern) was, from the sixth through the eighth century, a frontier region in the southeastern part of the Merovingian kingdom and was ruled by dukes (duces) under Frankish lordship.

The Archdiocese of Bremen (also Archdiocese of Hamburg-Bremen, German: Erzbistum Bremen, not to be confused with the modern Archdiocese of Hamburg, founded in 1994) was a historical Roman Catholic diocese (787–1566/1648) and formed from 1180 to 1648 an ecclesiastical state (continued under other names until 1823), named Prince-Archbishopric of Bremen (German: Erzstift Bremen) within the Holy Roman Empire.

The Margravate of Meissen (German: Markgrafschaft Meißen), sometimes March of Miśnia, was a medieval principality in the area of the modern German state of Saxony.

The Huosi were one of the Uradel noble families in the stem duchy of Bavaria, during the reign of the Agilolfing dynasty.

Bavaria-Munich (German: Bayern-München) was a duchy which was part of the Holy Roman Empire from 1392 to 1505.

The County of Katzenelnbogen (named after Chatti Melibokus) was an immediate state of the Holy Roman Empire.

Bavaria-Straubing denotes the widely scattered territorial inheritance in the Wittelsbach house of Bavaria that were governed by independent dukes of Bavaria-Straubing between 1353 and 1432; a map (illustration) of these marches and outliers of the Holy Roman Empire, vividly demonstrates the fractionalisation of lands where primogeniture did not obtain.

Bavaria-Ingolstadt (German: Bayern-Ingolstadt or Oberbayern-Ingolstadt) was a duchy which was part of the Holy Roman Empire from 1392 to 1447.

The Landgraviate of Hesse (German: Landgrafschaft Hessen) was a Principality of the Holy Roman Empire.

Bavaria-Landshut (German: Bayern-Landshut) was a duchy in the Holy Roman Empire from 1353 to 1503.

The Hiberno-Scottish mission is a generic title given to a series of missions and expeditions initiated by various Irish clerics and cleric-scholars who, for the most part, are not known to have acted in concert.

The Counts of Hohenberg (or Margraves of Hohenberg) were an ancient Swabian dynasty in the southwest of the present-day Germany, in the state of Baden-Württemberg.

The Lordship of Hanau was a territory within the Holy Roman Empire.

The Principality of Göttingen was a subdivision of the Duchy of Brunswick-Lüneburg in the Holy Roman Empire with Göttingen as its capital.

The March of the Nordgau (German: Markgrafschaft Nordgau) or Bavarian Nordgau (Bayerischer Nordgau) was a medieval administrative unit (Gau) on the frontier of the German stem duchy of Bavaria.

The County of Württemberg was a historical territory with origins in the realm of the House of Württemberg, the heart of the old Duchy of Swabia.

The Duke of Teck was, in medieval times, a title borne by the head of a branch line of the German ducal House of Zähringen from 1187 to 1439, known historically as the first House of Teck.