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Irmgard of Berg , heiress of Berg (died 1248–1249), was the child of Adolf VI count of Berg (1185–1218) and Berta von Sayn.
She married in 1217 Henry IV, Duke of Limburg (since 1226), who became count of Berg in 1225. Henry IV of Limburg-Berg died on 25 Feb 1246; their descendants were counts of Berg, the county of Berg leaving the descendance of the Ezzonen.
Berg was a state—originally a county, later a duchy—in the Rhineland of Germany. Its capital was Düsseldorf. It existed as a distinct political entity from the early 12th to the 19th centuries.
The County of Mark was a county and state of the Holy Roman Empire in the Lower Rhenish–Westphalian Circle. It lay on both sides of the Ruhr river along the Volme and Lenne rivers.
The Battle of Worringen was fought on 5 June 1288 near the town of Worringen, which is now the northernmost borough of Cologne. It was the decisive battle of the War of the Limburg Succession, fought for the possession of the Duchy of Limburg between Archbishop Siegfried II of Cologne and Duke John I of Brabant, and one of the largest battles in Europe in the Middle Ages.
The Duchy of Limburg or Limbourg was an imperial estate of the Holy Roman Empire. Its chief town was Limbourg-sur-Vesdre, is today located within the Belgian province of Liège, with a small part in the neighbouring province of Belgian Limburg, within the east of Voeren.
The Duchy of Jülich comprised a state within the Holy Roman Empire from the 11th to the 18th centuries. The duchy lay left of the Rhine river between the Electorate of Cologne in the east and the Duchy of Limburg in the west. It had territories on both sides of the river Rur, around its capital Jülich – the former Roman Iuliacum – in the lower Rhineland. The duchy amalgamated with the County of Berg beyond the Rhine in 1423, and from then on also became known as Jülich-Berg.
The Duchy of Cleves was a State of the Holy Roman Empire which emerged from the medieval Hettergau. It was situated in the northern Rhineland on both sides of the Lower Rhine, around its capital Cleves and the towns of Wesel, Kalkar, Xanten, Emmerich, Rees and Duisburg bordering the lands of the Prince-Bishopric of Münster in the east and the Duchy of Brabant in the west. Its history is closely related to that of its southern neighbours: the Duchies of Jülich and Berg, as well as Guelders and the Westphalian county of Mark. The Duchy was archaically known as Cleveland in English.
The Limburg-Luxemburg dynasty, one of several families from different periods known as the Luxembourg dynasty was a royal family of the Holy Roman Empire in the Late Middle Ages, whose members between 1308 and 1437 ruled as King of the Romans and Holy Roman Emperors as well as Kings of Bohemia and Hungary. Their rule was twice interrupted by the rival House of Wittelsbach.
The Duchy of Lower Lorraine, or Lower Lotharingia, was a stem duchy established in 959, of the medieval Kingdom of Germany, which encompassed almost all of the modern Netherlands the region of Frisia was loosely associated with the duchy, but the dukes de facto exercised no control over the territory see Frisian Freedom for details, central and eastern Belgium, Luxemburg, the northern part of the German Rhineland province and the eastern parts of France's Nord-Pas de Calais region.
Henry IV was the duke of Limburg and count of Berg from 1226 to his death. He was the son of Waleran III, count of Luxembourg and duke of Limburg, and Cunigunda, daughter of Frederick I, Duke of Lorraine.
Count Adolf VI of Berg ruled the County of Berg from 1197 until 1218.
Eberhard IV of Berg, count of Altena, son of Adolf IV, Count of Berg and Altena.
The house of Limburg Stirum, which adopted its name in the 12th century from the immediate county of Limburg an der Lenne in what is now Germany, is one of the oldest families in Europe. It is the eldest and only surviving branch of the House of Berg, which was among the most powerful dynasties in the region of the lower Rhine during the Middle Ages. Some historians link them to an even older dynasty, the Ezzonen, going back to the 9th century.
SiegfriedII of Westerburg was Archbishop of Cologne from 1275 to 1297.
Dietrich VII (1256–1305) was Count of Cleves from 1275 through 1305. He was the son of Dietrich VI, Count of Cleves and his wife Aleidis von Heinsberg.
Henry of Berg, Lord of Windeck was the son of Adolf VII of Berg and Margaret of Hochstaden. He was the younger brother of Adolf VIII of Berg and William I of Berg.
Adolf VIII of Berg was the eldest son of Count Adolf VII of Berg and Margaret of Hochstaden.
Adolf VII of Berg was the eldest son of Henry IV, Duke of Limburg and Irmgard of Berg.
The War of the Limburg Succession, was a series of conflicts between 1283 and 1289 for the succession in the Duchy of Limburg.
Gumprecht II of Neuenahr was a German nobleman. He inherited the County of Limburg via his wife.