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Henry III of Louvain (German: Heinrich, Dutch:Hendrik, French: Henri; died 1095), was count of Louvain (Leuven) and landgrave of Brabant, son of Henry II (c. 1020–1078), count of Louvain and Brussels, and Adela of Orthen (or Betuwe), a daughter of Count Everard of Orthen.
|Landgrave of Brabant|
Count of Louvain
Count of Brussels
|Noble family||House of Reginar|
|Spouse(s)||Gertrude of Flanders|
|Issue||Adelaide of Louvain|
|Father||Henry II, Count of Louvain|
|Mother||Adela of Orthen|
At his father Henry's death 1078 he became count of Louvain.
He was allied by family marriages to most of the nearby lords: he was brother-in-law of Baldwin II of Hainaut, and son-in-law of Robert I of Flanders. The bishop of Liège, Henri I of Verdun, was peace-loving. Henry was able to concentrate on the internal affairs of his lands, without external threats. He supported religious foundations in the western parts, and legislated to reduce lawlessness.
A genealogy of the time attributes to him four daughters (not named). Since he was succeeded by his brother Godfrey I of Leuven, it is inferred that he did not leave a son as heir. It has been suggested that the daughters included:
- Adelaide, wife of duke Simon I of Lorraine
- Gertrude, wife to Lambert, count of Montaigu and Clermont.
|Ancestors of Henry III, Count of Louvain|
- Parisse (1981), "Généalogie de la Maison d'Ardenne", La maison d'Ardenne Xe-XIe siècles. Actes des Journées Lotharingiennes, 24 - 26 oct. 1980, Centre Univ., Luxembourg: 9–41; Kupper, "Annexe 2", Liège et l’Église impériale