MATHILDE von Sponheim (-[13 Dec 1160/1161]). She is named by Orderic Vitalis, who calls her father "Duke Engelbert", when recording her marriage[124]. The Chronicle of Alberic de Trois-Fontaines names "comitissa Mathildis Campaniensis et uxor Renaldi comitis Nivernensis et comitissa Montis Veteris iuxta Coloniam et mater illorum Romanorum qui Froiepain dicuntur" as sisters of "archiepiscopi Coloniensis Frederici"[125], although the latter is shown by other sources to be their paternal uncle. "Teobaudus Blesensis comes" made a donation to Montiérender by charter dated 1139 with the consent of "Matildis comitissa uxor mee et Henricus filius meus"[126]. "Comitissa Mathildis et filius eius Henricus et Theobaudus et Stephanus" donated property to the abbey of Fontevraud by charter dated to [1125/49][127]. A list of foundations at Troyes records the memory "13 Dec" of "Mathilde épouse du comte Thibaut"[128]. The necrology of Saint-Etienne, Troyes records the death "13 Dec" of "Mathildis comitissa"[129]. The necrology of Chartres cathedral records the death "Id Dec" of "comitissa Mathildis mater…archiepiscopi Senonensis Willelmi et…Henrici comitis, Teobaldi comitis atque comitis Stephani"[130]. m (1123) THIBAUT IV "le Grand/le Vieil" Comte de Blois, son of ETIENNE Comte de Blois & his wife Adela of England ([1085/91]-8 Oct 1152).
http://fmg.ac/Projects/MedLands/CARINTHIA.htm#Mathildedied1160
Mathilde de Carinthie (v.1106 ou 1108 - † 13 décembre 1160), fille de Engilbert III de Carinthie et de Sponheim (v.1084 - †1152) et de Utta de Passau von Putten ( ? - †1140)[1].
En 1123, Mathilde épouse Thibaut IV de Blois (1093 - †1151), comte de Champagne, de Troyes, de Blois, de Chartres et de de Meaux.
http://fr.wikipedia.org/wiki/Mathilde_de_Carinthie