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Ctss de Longwy.

The Chronicle of Alberic de Trois-Fontaines names "comitissa de Longui et de Castris Ermensendis" as wife of "Conrado comiti de Luscelenburch". Ermensende de Luxembourg, daughter of Conrad [I] Comte [de Luxembourg], was later recorded as heiress of Longwy, which suggests an element of factual accuracy in this passage of Alberic. However, there are two other difficulties with the text. Firstly, "Castris" is normally the Latin name used for Bliescastel ... but no connection has been identified between Ermensende’s ancestors and the family of the Grafen von Bliescastel, although her daughter’s husband was Graf von Bliescastel: maybe Ermensende was the heiress of Bliescastel which she passed to her daughter. Secondly, considerable confusion concerning the identity of the wife or wives of Comte Conrad is introduced by other primary sources, which on the one hand indicate that she was related to the family of the Dukes of Aquitaine/Comtes de Poitou, and on the other record that her name was Clémence (who in addition is named in a charter as the mother of Comte Conrad´s daughter Ermensende).... It is of course possible that Comte Conrad married more than once. Alternatively, it is also possible that he married only once and that all the references to his wife/wives refer to the same person, although the latter proposition would suggest that Longwy somehow passed through the Aquitaine/Poitou family which has not been verified.... Assuming that Ermensende was Ctss de Longwy, it has been suggested that she was the daughter of Adalbert [Graf von Metz] Duke of Upper Lotharingia.... This is based on the Gesta Episcoporum Virdunensium which names "Albertum de Longui castro, quem…ducem", the text apparently referring to the duke of Upper Lotharingia who was killed in 1148. ¹