Conrad I, Count of Luxembourg (c. 1040 – 8 August 1086) was count of Luxembourg (1059–1086), succeeding his father Giselbert of Luxembourg

Giselbert of Luxembourg

Giselbert of Luxembourg was count of Salm and of Longwy, then count of Luxembourg from 1047 to 1059. He was the son of Frederick of Luxembourg, count of Moselgau, and perhaps of Ermentrude of Gleiberg....

.

He was embroiled in an argument with the archbishop of Trier as to the abbaye Saint-Maximin in Trier which he had avowed. The archbishop excommunicated him Conrad had to make honourable amends and set out on pilgrimage for Jerusalem. He died in Italy on the return journey.

He founded many abbeys:

• the abbaye d'Orval
  Orval Abbey
  Orval Abbey is a Cistercian monastery founded in 1132 in the Gaume region of Belgium and is located in Villers-devant-Orval, part of Florenville in the province of Luxembourg...
  
   in 1070, with Arnoul I, count of Chiny.
• a Benedictine convent in Munster
  Munster
  Munster is one of the Provinces of Ireland situated in the south of Ireland. In Ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for administrative and judicial purposes...
  
   in 1083

Marriage and issue

Around 1075 he married Clementia (1060 † 1142), suggested to have been daughter of Pierre-Guillaume VII, duke of Aquitaine

Duke of Aquitaine

The Duke of Aquitaine ruled the historical region of Aquitaine under the supremacy of Frankish, English and later French kings....

 and of Ermesinde. They had :

• Henri III († 1086), comte à Luxembourg
• Konrad, cité en 1080
• Mathilde (1070 † ), married Godefroy (1075 † ), comte de Bleisgau
• Rodolphe († 1099), abbot of Saint-Vannes at Verdun
• Ermesinde (1075 † 1143), married
  1. in 1096 to Albert II († 1098), count of Egisheim and of Dagsbourg,
  2. in 1101 to Godefroy (1067 † 1139), count of Namur. They were parents of Henry IV of Luxembourg
     Henry IV of Luxembourg
     Henry IV , called the Blind , was count of Luxembourg from 1136 and count of Namur from 1139 until his abdication in 1189. He was the son of Godfrey I of Namur and Ermesinda, daughter of Conrad I of Luxembourg.He inherited the counties of La Roche and Durbuy from his cousins Henry II of Durbuy and...
     
     
• William I
  William I, Count of Luxembourg
  William I, Count of Luxembourg was count of Luxembourg , in succession to his elder brother Henry III of Luxembourg. They were both sons of Conrad and Clementia of Aquitaine...
  
   (1081 † 1131), count of Luxembourg