The Duke of Brabant was the ruler of the Duchy of Brabant since 1183/1184. The title was created by the Holy Roman Emperor Frederick Barbarossa in favor of Henry I of the House of Reginar, son of Godfrey III of Leuven. The Duchy of Brabant was a feudal elevation of the existing title of landgrave of Brabant. This was an Imperial fief which was assigned to Count Henry III of Leuven shortly after the death of the preceding count of Brabant, Herman II of Lotharingia. Although the corresponding county was quite small its name was applied to the entire country under control of the dukes from the 13th century on. In 1190, after the death of Godfrey III, Henry I also became duke of Lotharingia. Formerly Lower Lotharingia, this title was now practically without territorial authority, but was borne by the later dukes of Brabant as an honorific title.
The Counts of Louvain were a branch of the Lotharingian House of Reginar which from the late 10th century ruled over the estates of Louvain (French) or Leuven (Dutch) in Lower Lorraine.
Het Steen is a medieval fortress in the old city centre of Antwerp, Belgium, one of Europe's biggest ports. The surviving structure was built between 1200 and 1225 as a gateway to a larger castle of the Dukes of Brabant which was demolished in the 19th century. As the first stone fortification of Antwerp, Het Steen is Antwerp's oldest building and used to be part of its oldest urban centre. The words "Het Steen", translated from Dutch mean "the rock" in English, although that is not the equivalent ethymological meaning.
Godfrey I, called the Bearded, the Courageous, or the Great, was the Landgrave of Brabant, Count of Brussels and Leuven (Louvain) from 1095 to his death and Duke of Lower Lorraine from 1106 to 1129. He was also Margrave of Antwerp from 1106 to his death.
Godfrey III, called the Bearded, was the eldest son of Gothelo I, Duke of Upper and Lower Lorraine.
Godfrey IV, known as the Hunchback, was Duke of Lower Lorraine from 1069 until his death in 1076, succeeding his father Godfrey the Bearded.
Gothelo, called the Great, was the duke of Lower Lorraine from 1023 and of Upper Lorraine from 1033. He was also the margrave of Antwerp from 1005 and count of Verdun. Gothelo was the youngest son of Godfrey I, Count of Verdun, and Matilda, daughter of Herman, Duke of Saxony. On his father's death, he received the march of Antwerp and became a vassal of his brother, Godfrey II, who became duke of Lower Lorraine in 1012. He succeeded his brother in 1023 with the support of the Emperor Henry II, but was opposed until Conrad II forced the rebels to submit in 1025. When the House of Bar, which ruled in Upper Lorraine, became extinct in 1033, with the death of his cousin Frederick III, Conrad made him duke of both duchies, so that he could assist in the defence of the territory against Odo II, count of Blois, Meaux, Chartres and Troyes.
Godfrey III was count of Louvain, landgrave of Brabant, margrave of Antwerp, and duke of Lower Lorraine from 1142 to his death.
The Duchy of Lower Lotharingia, also called Northern Lotharingia, Lower Lorraine or Northern Lorraine, was a stem duchy established in 959, of the medieval Kingdom of Germany, which encompassed almost all of the modern Netherlands, 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.
Godfrey II (965–1023), called the Childless, son of Godfrey I, Count of Verdun was the first of several members of his family to become duke of Lower Lorraine which roughly corresponded to modern Belgium and the Netherlands.
Godfrey I, called the Prisoner or the Captive, sometimes the Old, was the count of Bidgau and Methingau from 959 and the sovereign count of Verdun 963 to his death. In 969, he obtained the Margraviate of Antwerp and Ename. Between 974 and 998, he was also the sovereign count of Hainault and Mons.
The County of Verdun was a sovereign medieval county in the Duchy of Lower Lorraine.
The House of Ardenne–Verdun was a branch of the House of Ardenne, one of the first documented medieval European noble families, centered on Verdun. The family dominated in the Duchy of Lotharingia (Lorraine) in the 10th and 11th centuries. All members descended from Cunigunda of France, a granddaughter of the West Frankish king Louis the Stammerer. She married twice but all or most of her children were children of her first husband, Count Palatine Wigeric of Lotharingia. The other main branches of the House of Ardennes were the House of Ardenne–Luxembourg, and the House of Ardenne–Bar.
The Reginarids were a family of magnates in Lower Lotharingia during the Carolingian and Ottonian period. Their modern name is derived from the personal name which many members of the family bore, and which is seen as a Leitname of the family. At least two Dukes of Lotharingia in the 10th century belonged to this family. After a period of exile and rebellion, the two brothers who returned to power founded the first dynasties of the County of Hainault and County of Louvain. The latter were ancestors of the House of Brabant, Landgraves and later Dukes of Brabant, Lothier and Limburg. The Reginarid Brabant dynasty ended in 1355, leaving its duchies to the House of Luxembourg which in turn left them to the House of Valois-Burgundy in 1383. Junior branches of the male line include the medieval male line of the English House of Percy, Earls of Northumberland, and the German House of Hesse which ruled Hesse from 1264 until 1918, included King Frederick of Sweden and still exists today.
Gertrude of Flanders, was a Countess of Louvain and Landgravine of Brabant by marriage to Henry III, Count of Leuven, and a Duchess of Lorraine by marriage to Theodoric II, Duke of Lorraine. At the time the duchy was the upper Lorraine, since 959 separated from the duchy of Lower Lorraine.
Matilda of Saxony was a Saxon aristocrat who became countess of Flanders by marriage to Baldwin III, Count of Flanders.
