THIBAUT de Blois, son of EUDES II Comte de Blois & his second wife Ermengarde d'Auvergne ([1010]-29/30 Sep 1089, bur Epernay). The Liber Modernorum Regum Francorum names "Tetbaudus et Stephanus" as the two sons of Comte Eudes, specifying that Thibaut succeeded in "Carnotensem et Turonensem"[146]. The Chronicle of Alberic de Trois-Fontaines names "Theobaldi filii Odonis Campaniensis" when recording that he lost Tours in 1041[147]. "Odo comes filius [Odonis comitis]" confirmed a donation of his father by charter dated to [1032/37], subscribed by "Tetbaldi filii eius, matris eius Ermengardis…Hervei vicecomitis"[148]. He succeeded his father in 1037 as THIBAUT III Comte de Blois, de Chartres, de Châteaudun, de Meaux, de Sancerre et de Troyes. He lost Beauvais some time after 1037. Guillaume de Jumièges records that "comte Thibaut" was captured by Geoffroy Comte d'Anjou who extorted the town of Tours from him by force[149]. The Chronica Rainaldi records that "Tetbaldus, filius Odonis comitis" was captured by "Goffrido comite Andecavorum" in 1044 after which the city of Tours surrendered[150]. The necrology of Saint-Père-en-Vallée records the death "II Kal Oct" of "Tebaldus comes Carnotensium"[151]. The Chronicle of Alberic de Trois-Fontaines records that "comes Theobaldus [filius Odonis]" was buried "apud Spernacum"[152].
m firstly (repudiated 1048) as her first husband, GERSENDE du Maine, daughter of HERIBERT [I] "Euigilans Canis/Eveille-chien" Comte du Maine & his wife ---([1025/35]-). The Actus pontificum Cenomannis records that "Atho marchisius" left Maine in the hands of "Gaufridi de Meduana", also naming "uxor eiusdem marchisii Garcendis…filia Herberti Cenomannorum…comitis…Evigila Canem" and specifying that she had married firstly "Theobaldo duci Campanie" and that he had repudiated her[153]. She married secondly as his second wife, Alberto Azzo II d'Este. Her second marriage is also mentioned by Orderic Vitalis, who incorrectly says that she was the daughter of Comte Hugues IV[154].
[m secondly ([1050/55]) GUNDRADA, daughter of --- (-[1055/60]). Her marriage is confirmed by the charter dated 1089 under which "Stephanus comes" donated property to the abbey of Pontlevoy, for the souls of "Theobaldi comitis patris mei et matris meæ Gundreæ…"[155]. It is assumed that she died soon after giving birth to her son. Another possibility is that "Gundreæ" in this charter is in fact a distorted transcription of "Gersendæ", the name of Thibaut´s known first wife. This cannot be verified unless another primary source emerges which names the mother of Comte Etienne.]
m [secondly/thirdly] (before 1061) ADELA [Alix], daughter of --- (-12 May [1093/1100], bur Saint-Faron). "Adeladis comitisse" subscribed the donation to Cluny by "Rotrocus castri Mauritanie comes atque Dunensis castri vicecomes" dated 11 Jan 1078, immediately after "Tetbaldi comitis, Stephani comitis"[156], it being assumed that she was the wife of the former not the latter. Her parentage is uncertain. According to the Chronicle of Alberic de Trois-Fontaines, "Alaydis soror sancti Symonis" married "comiti Campanie Theobaldo", although Alberic confuses her with her supposed niece Adelais, daughter of Héribert [IV] Comte de Vermandois, saying that she married "Hugoni fratri regis Philippi" after the death of her husband[157]. If Alberic is correct, the [second/third] wife of Comte Thibaut III was Adela [Alix] de Valois, daughter of Raoul [III] de Crépy Comte du Vexin et de Valois & his first wife Aelis de Bar-sur-Aube. The difficulty with Alberic´s statement is an undated charter, quoted by Acta Sanctorum, under which "Rodulfus comes" [identified as Comte Raoul [III]] donated property to Saint-Rémy, confirmed by "Symonem filium meum, duos quoque generos meos, quos de filiabus meis habeo, id est Heribertum comitem et juvenem…Bartholomeum"[158]. If the wife of Thibaut III Comte de Blois had been another daughter of Comte Raoul [III], it is unclear why Thibaut would have been omitted from this document which appears to indicate clearly that Raoul had only two sons-in-law. Nevertheless, a close relationship with the family of the comtes de Valois is indicated by a charter dated to [1077/81] under which "Teobaudus comes palatinus…cum mulierum Adelaide" donated property to Montiérender, naming "bone memorie predecessorum…patris sui Odonis comitis et Heriberto cognomento senioris…comes Rodulfus predecessor suus et propinquus"[159], the latter presumably referring to Comte Raoul [III]. In addition, Comte Thibaut acquired the county of Bar-sur-Aube after the death of Comte Raoul. If Thibaut had not been Raoul´s son-in-law, the basis for this acquisition is unclear. The necrology of Saint-Loup, Troyes records the death "XII Mai" of "Aalais uxor Theobaudi comitis Campaniæ" and her burial "in monasterio Sancti Faronis"[160].
Comte Thibaut III & his [second] wife had one child: