House of Reginar

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House of Reginar
Armoiries Brabant.svg
Armorial of Reginar
Country Duchy of Lower Lorraine, Duchy of Brabant
Founded 770
Founder Gilbert, 1st Count of the Maasgau
Final ruler Joanna, Duchess of Brabant
Cadet branches House of Montfort
House of Percy (until 1610)
House of Hesse

The House of Reginar (later known as the House of Brabant) was a kin-group in Lotharingia during the Carolingian and Ottonian centuries. They were the first dynasty of the County of Hainault and they supplied two Dukes of Lorraine.

Following the death of Charles the Fat, the Reginarids began a long fight with the Conradines for supremacy in Lotharingia.[1] When they triumphed, in 910, it was in electing Charles the Simple as king. It was the combined forces of Bruno I of Lorraine and the Carolingians of West Francia that finally broke the Reginarids' hold on power.[2] In 958, Reginar III had his lands confiscated and redistributed to Gerard, Count of Metz, of the Matfridings, enemies of his family since the reign of Zwentibold.[3]

The Reginarids supported Lothair of France against Otto II, but they made a deal with the latter in 978.[4] Nonetheless, the Reginarids were not longer a unified family by the end of the tenth century.[5] Their descendants in Mons and Louvain continued their spirit of opposition to the king, however.[6] The house also produced a queen-consort of England in the form of Adeliza of Leuven, who married Henry I of England.


  • Reuter, Timothy. Germany in the Early Middle Ages 800–1056. New York: Longman, 1991.


  1. ^ Reuter, 135.
  2. ^ Reuter, 168.
  3. ^ Reuter, 159.
  4. ^ Reuter, 176.
  5. ^ Reuter, 192.
  6. ^ Reuter, 201.