LUXEMBOURG Conrad

1040 - 1086  (46 years)

• Name	LUXEMBOURG Conrad
  Birth	1040	Luxemburg, Upper Lotharingia, Holy Roman Empire
  Gender	Male
  Death	08 Aug 1086	Palestine
  Notes	Conrad (later Conrad I Comte de Luxembourg) was the son of Giselbert, Graf von Salm, Comte de Luxembourg and his wife whose name remains unknown but who is considered to have been connected to the family of Emperor Konrad of Lotharingia. [1] Conrad succeeded his father as Comte de Luxembourg in about 1057 (1056-59). He was later excommunicated in connection with the capture of Eberhardus, the Archbishop of Trier, who died in 1066. The excommunication was to be lifted following a pilgrimage to the Holy Land on which Conrad himself died on 8 Aug 1086, on his return from Palestine (never reaching Italy). [1] [2] Marriages and Family Conrad's first marriage was to Ermesinde de Poitou. She is considered to have been a granddaughter of Guillaume V "le Grand" Duc d'Aquitaine (Guillaume III Comte de Poitou (see Research Notes below regarding Ermesinde de Poitou). [1] Conrad's second marriage, presumably after the death of Ermesinde de Poitou, was to a woman named Clementia whose surname is not certain but who is considered likely to have been a member of the Braunschweig family. [1] Conrad had as many as eight reported children - of which three sons and two daughters are considered certain: [1] Henri de Luxembourg - who in 1086 succeeded his father as Henri II Comte de Luxembourg Guillaume / William de Luxembourg - who married Liutgard von Beichlingen; succeeded his brother in about 1096 as Guillaume I Comte de Luxembourg and was succeeded by his son in about 1130 who became Conrad II Comte de Luxembourg Adalbero de Luxembourg - who was killed at Antioch in early 1098 Ermesinde de Luxembourg - who first married Albert II Graf von Dagsburg and secondly (in 1109) Godefroi Comte de Namur; who became the heiress to Luxembourg after the death of her nephew Conrad, following which Luxembourg passed into the Namur family though her son Henri IV Comte de Luxembourg [3] [4] Mathilde de Luxembourg - who married Gottfried von Metz, Graf im Bliesgau Other children have been reported but are considered less certain or uncertain: [1] Conrad Rudolph Odilia Research Notes Note regarding wives of Conrad Conrad's first wife, Ermesinde de Poitou, is considered to have been a granddaughter of Guillaume V "le Grand" Duc d'Aquitaine (Guillaume III Comte de Poitou and also heiress to Longwy. While the Longwy connection was questioned by Cawley FMG,[1] the apparent misinterpretation may come from a secondary source and not the primary. Specifically, Cawley FMG tracks certain secondary sources as indicating that the connection between Conrad's first wife Ermesinde de Poitou and the estate of Longwy "appears to have been based on a misinterpretation of the primary sources" (namely the Chronicle of Alberic (Alberic of Trois-Fontaines (French: Aubri or Aubry de Trois-Fontaines; Latin: Albericus Trium Fontium) from 1232, reflecting in this case records from 1168). It is suggested that: "The Chronicle of Alberic de Trois-Fontaines names comitissa de Longui et de Castris Ermensendis as wife of Conrado comiti de Luscelenburch [citing the Chronicle of Alberic]. "Castris" is normally the Latin name for Bliescastel… No connection has been found between between Ermensende and the Bliescastel family, although her daughter’s husband was Graf von Bliescastel." [1] The indication that Ermesinde was noted as being the countess of both Longui and of Castris (Bliescastel) appears to have come from a secondary source suggesting that she was referred to by Albaric as being comitissa de Longui et de Castris Ermensendis. However, the Chronicle of Alberic as transcribed in 1698 does not indicate that Ermesendis was associated with Castris - but rather that she was associated with the estate of Longwy - and that her daughter Mathilde was later associated not only with Longwy but also with Castris (i.e. Bliescastel): [5] Quadeam autem nobilis Comitissa de Longuy Ermonsendis nomine peperit Comitem Guillelmum de Lucemburc patrem Conrardi, & Ermensendem Comitissam Namurcensem uxorem Comitis Godefredi, & Mathildam Comitissam de Longuy & de Homberc, & de Castris. Regarding Castris / Bliescastel then, it was Ermesinde's daughter Mathilde de Luxembourg as reflected in the Chronicle (i.e. not Ermesinde herself) who became connected with Castris / Bliescastel - and Mathilde in fact married Gottfried de Metz - who was indeed Graf von Bliescastel (as recognized by Cawley FMG). [1] Regarding Longwy, the further suggestion in Cawley FMG that Conrad's wife Ermesinde de Poitou might not have been the Comtesse de Longwy (going through potential acquisitions of Longwy by Conrad's father that are not supported by any primary sources) is also inconsistent with the closest source - which clearly indicates that the mother of Conrad's relevant inheriting children was "Ermonsendis" and that she had been "Comitissa de Longuy." [5] Ermesinde de Poitou was also apparently connected to the house of Poitou, and was likely a granddaughter of Guillaume V "le Grand" Duc d'Aquitaine (Guillaume III Comte de Poitou based on texts and reasons laid out in Cawley FMG. As Cawley FMG further notes: This suggestion appears confirmed by Albert of Aix who names one of her sons "...Adelberonem…juvenem nobilissimum de regio sanguine et proximum Henrici tertii Romanorum Augusti", the wife of King Heinrich III being Agnès de Poitou, daughter of Guillaume V." (Citing RHC, Historiens occidentaux, Tome IV (Paris, 1879), Alberti Aquensis Historia Hierosolymitana ("Albert of Aix (RHC)"), Liber III, Cap. XLVI, p. 370). [1] The question then, as Cawley notes, is through which child of Guillaume V of Aquitaine was Ermesinde de Poitou descended - also taking into account (as Cawley thought was not necessarily the case), that she was in fact reported by early sources as being the Countess of Longwy (and his basis for potentially "correcting" that was based on a misreading of the record, as noted above). While there have been some suggestions that her father might have been Gui Geoffroi de Poitou, Guillaume VIII duc d'Aquitaine,[1] that appears to be incorrect. Guillaume VIII had several wives, but none of them appear to have been associated with Ermesinde. However, Guillaume's elder brother Pierre de Poitou, Guillaume VII duc d'Aquitaine also took the name of Guillaume upon becoming Guillaume VII duc d'Aquitaine - and his wife was Ermesinde. Consistent with the Longwy inheritance, the German history of the nobility and associated families known as the Europäische Stammtafeln has been cited as indicating that this person Ermesinde of Longwy was a daughter of Adalbert de Metz and his wife. [6] While these relationships of Ermesinde de Poitou are consistent with the principal records - and also the indications from early sources that both she and her daughter were associated with the inheritance of Longwy - they are not considered to be proven on the basis of a primary source. As in many cases of the time, the relationships can only be considered as likely based on a combination of associated records - including the co-occurrence of names and apparent family relationships - and in this case also with consistency of the inheritance of associated estates. Conrad's second wife was reflected in records as "Clementia". She may have been a member of the Braunschweig family although her parentage is not considered certain. [1] Some secondary sources effectively blend the earlier references to Ermesinde and the later referencs to Clementia into a single person, often then referred to as Clemence de Poitou or Clementia of Aquitaine - but there is no clear evidence to show that these were the same person. [1] Note regarding children of Conrad Regarding several of Conrad's reported children, certain of the references that have influenced genealogies are considered suspect, as reviewed in Cawley FMG. Conrad, Rudolph and Odilia are characterized accordingly. [1] The five children referenced in the top list above are reflected in records - but their order as reflected in Cawley FMG is not entirely consistent. A principal source related to Guillaume and Ermesinde (both of whom were later heirs), apparently indicates that both they and their sister Mathilde were children of Count Conrad of Luxembourg and his wife first wife Ermesinde. Cawley's basis for potentially "correcting" their parentage is a later charter in which Conrad's second wife Clementia, as countess, makes reference to the consent of Ermesinde and Guillaume, but her step-children might well have been referenced as her children. Furthermore, Cawley's chronology is difficult with respect to Clementia being the mother of Mathilde (leading to his conclusion that she must instead have been a daughter of the first marriage). There is also the actual inheritance of the estate reflected in Conrad's succession - which went from Conrad's eldest son Henri to his son Guillaume, and then from Guillaume to Guillaume's son Conrad, and finally from Conrad to his aunt Ermesinde - in connection with which Luxembourg passed into the Namur family.[4] If as the cited reference apparently reflected, both Guillaume and Ermesinde were children of the first marriage, and the later reference was simply referencing their consent in their capacity as step-children of the then-current countess Clementia (particularly since they were in fact in a position to become Conrad's heirs and did in fact become his heirs), then none of these would be inconsistencies requiring a proposed "correction" or suggestions of unusual inheritance patterns (as posited by Cawley). Finally, while the children may have been referenced in association with their step-mother in connection with subsequent consents, the opposite is not true. That is, if they were actually the biological children of Conrad's second wife and not his first, then they would not be referenced in connection with his first wife Ermesinde. In fact, the primary reference from 1232 reflecting an account regarding the year 1168 not only associates them with Ermesinde but it uses the more distinctive term of peperit (third person singular perfect of pario: she gave birth to): [5] Quadeam autem nobilis Comitissa de Longuy Ermonsendis nomine peperit Comitem Guillelmum de Lucemburc patrem Conrardi, & Ermensendem Comitissam Namurcensem uxorem Comitis Godefredi, & Mathildam Comitissam de Longuy & de Homberc, & de Castris. Regarding the passage of Luxembourg through Ermesinde as heir to the Namur family, it is reflected in both the original Chronicle by Alberic quoted above (Ermensendem Comitissam Namurcensem uxorem Comitis Godefredi being the daughter and "progeny" of Comitissa de Longuy Ermonsendis) [5] - and also in the subsequent records reflected in Cawley FMG related to the house of Luxembourg - Namur. [4] Sources ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 Comtes de Luxembourg 963-1136 by Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Published by Charles Cawley and the Foundation for Medieval Genealogy (FMG) 2006-2021, including source citations and relevant texts; hosted online by FMG, accessed 2024; see also WikiTree's source page for MedLands) ↑ Gades, John A. (Brill Archive, 1951) Luxemburg in the Middle Ages. Cf. pp. 55-58. Available via Google Books: Luxemburg in the Middle Ages ↑ Comtes de Namur 907-1190 - Godefroi de Namur by Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Published by Charles Cawley and the Foundation for Medieval Genealogy (FMG) 2006-2021, including source citations and relevant texts; hosted online by FMG, accessed 2024; see also WikiTree's source page for MedLands) ↑ 4.0 4.1 4.2 Comtes de Luxembourg 1136-1247 (Namur) by Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families. Published by Charles Cawley and the Foundation for Medieval Genealogy (FMG) 2006-2021, including source citations and relevant texts; hosted online by FMG, accessed 2024; see also WikiTree's source page for MedLands) ↑ 5.0 5.1 5.2 5.3 Alberici monachi Trium fontium Chronicon, è manuscriptis nunc primum editum à Godofredo Guilielmo Leibnitio; available online via Internet Archive, Alberici monachi Trium fontium Chronicon (cf. page 350, image 644 of 884) ↑ Europäische Stammtafeln, Band II, Frank Baron Freytag von Loringhoven, 1975, Isenburg, W. K. Prinz von. p 28
  Person ID	I59528	Freeman-Smith
  Last Modified	27 Jan 2026

  
  

  Father	LUXEMBOURG Giselbert,   b. Abt 1007, Chateau de Salm, Ardennes, Luxembourg d. 14 Aug 1059, Luxembourg (Age 52 years)
  Relationship	natural
  Family ID	F347493	Group Sheet  |  Family Chart

  
  

  Family	POITOU Ermesinde,   b. Abt 1040, Poitou, Duché d'Aquitaine, France
  Children	1. LUXEMBOURG Ermesinde,   b. Bef 1086, Luxembourg, Upper Lotharingia, Holy Roman Empire d. 26 Jun 1141 (Age > 55 years)  [Father: natural]  [Mother: natural]
  Family ID	F26435	Group Sheet  |  Family Chart
  Last Modified	27 Jan 2026