The Counts of Louvain were a branch of the Lotharingian

House of Reginar The Reginarids (or Regnarids, Regniers, Reiniers, etc.) 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 whi ...

which from the late 10th century ruled over the estates of

Louvain Leuven (, ) or Louvain (, , ; german: link=no, Löwen ) is the capital and largest city of the province of Flemish Brabant in the Flemish Region of Belgium. It is located about east of Brussels. The municipality itself comprises the historic c ...

(''

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

'') or Leuven (''

Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...

'') in

Lower Lorraine The Duchy of Lower Lotharingia, also called Northern Lotharingia, Lower Lorraine or Northern Lorraine (and also referred to as '' Lothier'' or '' Lottier''

History

The likely ancestor of the Reginars,

Gilbert, Count of the Maasgau Gilbert (Giselbert), Count of Maasgau was a Frankish noble in what would become Lotharingia, during his lifetime in the 9th century. The Carolingian dynasty created this "middle kingdom" and fought over it, and he was is mentioned as playing a role ...

, a vassal of the

West Frankish In medieval history, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () refers to the western part of the Frankish Empire established by Charlemagne. It represents the earliest stage of the Kingdom of France, lasting from about ...

king

Charles the Bald Charles the Bald (french: Charles le Chauve; 13 June 823 – 6 October 877), also known as Charles II, was a 9th-century king of West Francia (843–877), king of Italy (875–877) and emperor of the Carolingian Empire (875–877). After a se ...

, married a daughter of the

Carolingian The Carolingian dynasty (; known variously as the Carlovingians, Carolingus, Carolings, Karolinger or Karlings) was a Frankish noble family named after Charlemagne, grandson of mayor Charles Martel and a descendant of the Arnulfing and Pippi ...

emperor

Lothair I Lothair I or Lothar I ( Dutch and Medieval Latin: ''Lotharius''; German: ''Lothar''; French: ''Lothaire''; Italian: ''Lotario'') (795 – 29 September 855) was emperor (817–855, co-ruling with his father until 840), and the governor of Bava ...

in 846. Reginar I "longneck", possibly his son, was the most powerful noble in the now kingless kingdom of

Lotharingia Lotharingia ( la, regnum Lotharii regnum Lothariense Lotharingia; french: Lotharingie; german: Reich des Lothar Lotharingien Mittelreich; nl, Lotharingen) was a short-lived medieval successor kingdom of the Carolingian Empire. As a more durable ...

(Lorraine), in the period from 910 to 915. His son and successor

Gilbert Gilbert may refer to: People and fictional characters *Gilbert (given name), including a list of people and fictional characters *Gilbert (surname), including a list of people Places Australia * Gilbert River (Queensland) * Gilbert River (South A ...

swore fealty to the East Frankish king

Henry the Fowler Henry the Fowler (german: Heinrich der Vogler or '; la, Henricus Auceps) (c. 876 – 2 July 936) was the Duke of Saxony from 912 and the King of East Francia from 919 until his death in 936. As the first non- Frankish king of East Francia, h ...

in 925 and three years later married his daughter Gerberga of Saxony. His younger brother's son

Reginar III Reginar III (c. 920 – 973) was Count of Hainaut from approximately 940 until his exile in 958. He was the son of Reginar II, Count of Hainaut. He took part in the rebellion of his uncle Gilbert, Duke of Lorraine. When Gilbert was killed in ...

held lands in the region of

Mons Mons (; German and nl, Bergen, ; Walloon and pcd, Mont) is a city and municipality of Wallonia, and the capital of the province of Hainaut, Belgium. Mons was made into a fortified city by Count Baldwin IV of Hainaut in the 12th century. T ...

. About 990, Lambert the Bearded (d. 1015), son of Count Reginar III, married Gerberga, daughter of the Carolingian duke Charles of Lower Lorraine, and by 1003 he was being described as a Count of Louvain. His county, with its original capital of Louvain built upon the Dyle river, between the old

Pagus of Brabant The ''pagus'' of Brabant ( la, Pagus Bracbantensis, nl, Brabantgouw) was a geographical region in the early Middle Ages, in what is now Belgium. It was the first region known to have been called Brabant, and it included the modern capital of Bel ...

and

Pagus of Hasbania The ''pagus'' or '' gau'' of ''Hasbania'' was a large early medieval territory in what is now eastern Belgium. It is now approximated by the modern French- and Dutch-speaking region called Hesbaye in French, or ''Haspengouw'' in Dutch — both be ...

, rapidly increased in size and power. In 1013, Lambert annexed part of the county of Bruningrode, located between Louvain and

Tienen Tienen (; french: Tirlemont ) is a city and municipality in the province of Flemish Brabant, in Flanders, Belgium. The municipality comprises Tienen itself and the towns of Bost, Goetsenhoven, Hakendover, Kumtich, Oorbeek, Oplinter, Sint-Margriete ...

, and this became a source of long-running conflict with the prince-bishops of Liège. Lambert's family gained great influence in the

Holy Roman Empire The Holy Roman Empire was a political entity in Western, Central, and Southern Europe that developed during the Early Middle Ages and continued until its dissolution in 1806 during the Napoleonic Wars. From the accession of Otto I in 962 unt ...

, acquiring more comital titles over time. His son Lambert II is also mentioned as a count of

Brussels Brussels (french: Bruxelles or ; nl, Brussel ), officially the Brussels-Capital Region (All text and all but one graphic show the English name as Brussels-Capital Region.) (french: link=no, Région de Bruxelles-Capitale; nl, link=no, Bruss ...

, where he had the St. Michael's Church erected to house the relics of

Saint Gudula Saint Gudula was born in the pagus of Brabant (in present-day Belgium). According to her 11th-century biography ( Vita Gudilae), written by a monk of the abbey of Hautmont between 1048 and 1051, she was the daughter of a duke of Lotharingia call ...

. When he joined the rebellion of Count

Baldwin V of Flanders Baldwin V ( 1012 – 1 September 1067) was Count of Flanders from 1035 until his death. He secured the personal union between the counties of Flanders and Hainaut and maintained close links to the Anglo-Saxon monarchy, which was overthrown by hi ...

against

Emperor Henry III Henry III (28 October 1016 – 5 October 1056), called the Black or the Pious, was Holy Roman Emperor from 1046 until his death in 1056. A member of the Salian dynasty, he was the eldest son of Conrad II and Gisela of Swabia. Henry was raised by ...

, he was killed in a 1054 battle at

Tournai Tournai or Tournay ( ; ; nl, Doornik ; pcd, Tornai; wa, Tornè ; la, Tornacum) is a city and municipality of Wallonia located in the province of Hainaut, Belgium. It lies southwest of Brussels on the river Scheldt. Tournai is part of Eurome ...

. Lambert's grandson, Count Henry III of Louvain was vested with the title of a

Landgrave of Brabant The Landgraviate of Brabant (1085–1183) was a small medieval fiefdom west of Brussels, consisting of the area between the Dender and Zenne rivers in the Low Countries, then part of the Holy Roman Empire. Before 1085 the land had belonged ...

upon the death of the Ezzonid count palatine Hermann II of Lotharingia in 1085. In the early 12th century, Henry III was succeeded by his brother Godfrey I, who was entrusted with the imperial Dukedom of Lower Lotharingia, and

Margraviate of Antwerp The Margraviate of Antwerp (or Mark of Antwerp) consisted since the eleventh century of the area around the cities of Antwerp and Breda. Origin Under Otto II, emperor of the Holy Roman Empire, several marches were created along the border wi ...

after Henry of Limbourg fell out of favour. Although the title was later given back to the lords of Limbourg-sur-Vesdre, Godefrey and his family refused to stop using the title, and kept possession of Antwerp. The ensuing conflict between the families led to the eventual abolishment of the Duchy, and the two families came to be known as the Dukes of Brabant and Limbourg respectively.

Counts of Louvain and Brussels

* 1003–1015: Lambert I, was the first Count of Louvain, son of

Count of Hainaut The Count of Hainaut (; ; ) was the ruler of the county of Hainaut, a historical region in the Low Countries (including the modern countries of Belgium, the Netherlands, Luxembourg and parts of northern France and western Germany). In English-la ...

* 1015–1038:

Henry I Henry I may refer to: 876–1366 * Henry I the Fowler, King of Germany (876–936) * Henry I, Duke of Bavaria (died 955) * Henry I of Austria, Margrave of Austria (died 1018) * Henry I of France (1008–1060) * Henry I the Long, Margrave of the N ...

, (son of Lambert I) * 1038–1040: Otto{{cn, date=February 2022 * 1040–1054: Lambert II, (son of Lambert I) * 1054–1079: Henry II, (son of Lambert II) * 1079–1086: Henry III, (son of Henry II)

Counts of Louvain and Brussels, Landgraves of Brabant

* 1086–1095: Henry III, (son of Henry II) * 1095–1106: Godfrey I, (son of Henry II)

Counts of Louvain and Brussels, Landgraves of Brabant, Dukes of Lower-Lorraine

* 1106–1128: Godfrey I, (son of Henry II) * 1128–1141: Godfrey II, (son of Godfrey I) * 1141–1190: Godfrey III, (son of Godrey II) From 1183 onwards, the titles of Count of Louvain, Count of Brussels and

were merged in the title of

Duke of Brabant 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 (who was duke of Low ...

and used as

appanage An appanage, or apanage (; french: apanage ), is the grant of an estate, title, office or other thing of value to a younger child of a sovereign, who would otherwise have no inheritance under the system of primogeniture. It was common in much o ...

Leuven Leuven (, ) or Louvain (, , ; german: link=no, Löwen ) is the capital and largest city of the province of Flemish Brabant in the Flemish Region of Belgium. It is located about east of Brussels. The municipality itself comprises the historic c ...

House of Reginar History of Leuven