William, Count of Luxembourg

William I, Count of Luxembourg (1081–1131) was count of Luxembourg (1096–1131), in succession to his elder brother Henry III of Luxembourg. They were both sons of Conrad and Clementia of Aquitaine.^[1] William was the first of his family to use the title count of Luxembourg in his documents.

Like his predecessors, he was embroiled in debates with the archbishop of Trier Bruno in 1122 and 1127, leading to William's excommunication.^[2]

Around 1105 he married Mathilde or Luitgarde of Northeim, daughter of Kuno, count of Beichlingen, and had three children:

Conrad II († 1136), count of Luxembourg^[3]
William, count of Gleiberg, documented in 1131 and in 1158
Liutgarde (* 1120 - † 1170),^[3] married Henri II (* 1125 - † 1211), count of Grandpré^[4]

References

^ Gades 1951, p. 58.
^ Gades 1951, p. 59.
^ ^a ^b Gades 1951, p. 60.
^ Gilbert of Mons 2005, p. 38.

Sources

Gades, John A. (1951). Luxembourg in the Middle Ages. Brill.
Gilbert of Mons (2005). Chronicle of Hainaut. Translated by Napran, Laura. The Boydell Press.

William, Count of Luxembourg Elder House of Luxemburg Born: 1081 Died: 1131
Preceded by Henry III	Count of Luxembourg 1096–1131	Succeeded by Conrad II

Monarchs of Luxembourg

County of Luxemburg (963–1354)

Elder House of Luxembourg (963–1136)	Siegfried (963–998) Henry I (998–1026) Henry II (1026–1047) Giselbert (1047–1059) Conrad I (1059–1086) Henry III (1086–1096) William I (1096–1131) Conrad II (1131–1136)
House of Namur (1136–1189)	Henry IV (1136–1189)
House of Hohenstaufen (1196–1197)	Otto (1196–1197)
House of Namur (1197–1247)	Ermesinde (1197–1247), with Theobald (1197–1214), and then Waleran (1214–1226)
House of Limburg (1247–1354)	Henry V (1247–1281) Henry VI (1281–1288) Henry VII (1288–1313) John I (1313–1346) Charles I (1346–1353) Wenceslaus I (1353–1354)

Duchy of Luxemburg (1354–1794)

House of Limburg (1354–1443)	Wenceslaus I (1354–1383) Wenceslaus II (1383–1388) Jobst (1388–1411) Elisabeth (1411–1443) with Anthony (1411–1415), and then John II (1418–1425)
House of Valois-Burgundy (1443–1482)	Philip I (1443–1467) Charles II (1467–1477) Mary I (1477–1482) and Maximilian I (1477–1482)
House of Habsburg (1482–1700)	Philip II (1482–1506) Charles III (1506–1556) Philip III (1556–1598) Isabella Clara Eugenia (1598–1621) and Albert (1598–1621) Philip IV (1621–1665) Charles IV (1665–1700)
House of Bourbon (1700–1712)	Philip V (1700–1712)
House of Wittelsbach (1712–1713)	Maximilian II (1712–1713)
House of Habsburg (1713–1780)	Charles V (1713–1740) Mary II (1740–1780)
House of Habsburg-Lorraine (1780–1794)	Joseph (1780–1790) Leopold (1790–1792) Francis (1792–1794)

Grand Duchy of Luxembourg (since 1815)

House of Orange-Nassau (1815–1890)	William I (1815–1840) William II (1840–1849) William III (1849–1890)
House of Nassau-Weilburg (1890–present)	Adolphe (1890–1905) William IV (1905–1912) Marie-Adélaïde (1912–1919) Charlotte (1919–1964) Jean (1964–2000) Henri (since 2000)