Son of Milon de Tonnerre and Ermengarde:

http://fmg.ac/Projects/MedLands/burgdtonne.htm#MiloIVTonnerredied1046B

RAINARD de Tonnerre ([980/90]-after 16 Jul 1039). “Milo comes Tornodorensis castri” donated property to the monastery of Saint-Michel, with the consent of “coniugis mee Ermengarde et…filiorum meorum Achardi, Rainardi et Alberici”, by charter dated to [992/1005][58]. "Milo comes… Achardus, Odo, Raynardus" witnessed the charter dated to [992] under which “Umbertus…et mee conjugis…Giberge” donated property "in villa…Curtis-Secreta…in comitatu Tornodorense" to Saint-Michel de Tonnerre[59]. It is possible that the last three names in the list refer to the children of Milon [IV] Comte de Tonnerre. Comte de Tonnerre. "Raynardus comes Tornodorensis pagi et mater mea Ermengardis comitissa" donated "alodum nostrum…Cappam" to Saint-Michel by charter dated 1002, signed by "Odonis vicecomitis…"[60]. "Leotgarda comitissa…ac filii mei Rogerii" donated "terram…in villa…Jassant" to Saint-Michel by charter dated to [1005], signed by "Rogerius comes, Richardus, Rainardus comes, Alberic, Erembertus vicecomes, Milo…"[61]. “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036, subscribed by “…Raynaldi comitis, Willelmi comitis filius eius”[62]. “Raynardus comes” donated property to the monastery of Saint-Michel (on his deathbed), with the consent of “uxoris mee Herviz et filii mei Harduini sive filie mee Ermengarde”, by charter dated 16 Jul 1039 which also names “mater mea Ermengardis”[63].

m (after 1002) HELVIS, daughter of --- (-after 16 Jul 1039). “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036[64]. “Raynardus comes” donated property to the monastery of Saint-Michel (on his deathbed), with the consent of “uxoris mee Herviz et filii mei Harduini sive filie mee Ermengarde”, by charter dated 16 Jul 1039 which also names “mater mea Ermengardis”[65]. Rainard & his wife had three children:

i) OTTO de Tonnerre (-before Jul 1036, bur Tonnerre Saint-Michel). “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036[66]. Otto is shown in Europäische Stammtafeln[67] as having three possible sons, Robert, Wido and Renaud, all “puer” 1036. This is based on the charter of “Rainaldus comes” dated Jul 1036 (see above). The full list of subscribers to this document is: “Rainaldi comitis, Arduini, Erviz matris eius, Ermengardæ sororis eius, Ervei, Widonis, Hugonis, Barnuynis, Wydonis, Emelini, Iterii, Widrici, Rotberti clerici, Hugonis, Rodulfi, Attonis, Raynaldi, Rotberti pueri, Widonis pueri, Raynardi pueri, Richardi, Otmundi, Attoni, Joffredi, Otmundi, Aymonis, Millonis clerici, Raynaldi comitis, Willelmi comitis filii eius”[68]. None of the names has been identified apart from Comte Renaud and his immediate family, and the last two. The names of the three “pueri” have no special priority in the order of the list and it seems pure speculation to suggest that they may have been the sons of Otto, deceased son of Renaud.

ii) HARDOUIN de Tonnerre (-29 Sep 1065). “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036[69]. “Raynardus comes” donated property to the monastery of Saint-Michel (on his deathbed), with the consent of “uxoris mee Herviz et filii mei Harduini sive filie mee Ermengarde”, by charter dated 16 Jul 1039 which also names “mater mea Ermengardis”[70]. Archdeacon at Noyon until 1050. Bishop of Langres 1050.

iii) ERMENGARDE de Tonnerre ([1023/26]-before 1090). “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036[71]. Her birth date is estimated from her marriage in [1039], combined with the fact that she was still not of marriageable age in 1036. “Raynardus comes” donated property to the monastery of Saint-Michel (on his deathbed), with the consent of “uxoris mee Herviz et filii mei Harduini sive filie mee Ermengarde”, by charter dated 16 Jul 1039 which also names “mater mea Ermengardis”[72]. Her marriage is referred to in the Gesta pontificum Autissiodorensium[73]. She succeeded as Ctss de Tonnerre in 1065 when her cousin Comte Hugues-Rainard became bishop of Langres[74]. m ([1039]%29 as his first wife, GUILLAUME [I] Comte de Nevers et d'Auxerre, son of RENAUD [I] Comte de Nevers & his wife Hedwig [Avoie] de France [Capet] (-20 Jun 1098, bur Nevers Saint-Etienne).

Liste des comtes de Bar-sur-Seine

https://fr.wikipedia.org/wiki/Ch%C3%A2teau_de_Bar-sur-Seine

[ Ne doit pas être confondu avec les comtes de Bar (Bar-le-Duc).]

Les armoiries du comté mais celles-ci sont postérieures au dernier comte de Bar-sur-Seine

Comtes du Pagus Latiscencis, ou comtes du Lassois :

• Renard de Woëvre (c. 890) [r%C3%A9f. souhaitée]
• Réginald de Woëvre, (950-997) [r%C3%A9f. souhaitée]
• Raoul III[r%C3%A9f. souhaitée] de Woëvre, (c. 965). Vivait encore à l'époque de Brunon de Roucy, évêque de Langres3
• ? - 997 : Rainard de Bar-sur-Seine († c. 997), fils de Raoul qui précède4
• Une fille Ermengarde qui suit3
• 997-998 : Milon II, comte de Tonnerre, marié à Ermengarde3
• 998-1002 : Herbert III de Vermandois, second époux d'Ermengarde5
• 1002- ? : Renaud Ier de Tonnerre, fils de Milon II (tutelle de sa mère Ermengarde)5
• ?- 1039 : Renaud Ier, comte de Tonnerre et de Bar-sur-Seine6
• marié à Erwise6,7
• Trois enfants, Othon († 1036)6, Arduin évêque de Langres († 1065), Ermengarde (v. 1032-1083)
• 1040 : Guy de Tonnerre, frère du précédent8

Refs: Ernest Petit, Histoire des ducs de Bourgogne de la race capétienne avec des documents inédits et des pièces justificatives, t. II, Paris, Lechevalier, 1888, « Généalogie des premiers comtes de Tonnerre, documents inédits du xe siècle pour servir à l'histoire...et des comtes inconnus jusqu'ici de Bar-sur-Seine », p. 419-442, disponible [archive] sur Gallica https://gallica.bnf.fr/ark:/12148/bpt6k111725f/f443

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COMTES de BAR-sur-SEINE
from FMG Medieval Land Database updated May 2020

A. COMTES de BAR-sur-SEINE

1. RAOUL . The Chronicle of St Bénigne de Dijon names "miles Rodulfus…de Barrensi castro…et filius ipsius Rainardus"[169]. m ---. The name of Raoul’s wife is not known. Raoul & his wife had one child:

a) RAINARD . The Chronicle of St Bénigne de Dijon names "miles Rodulfus…de Barrensi castro…et filius ipsius Rainardus"[170]. same person as…? RAINARD (-after [997]). Comte [de Bar-sur-Seine]. "Milo comes…Raynardus comes…" witnessed the charter dated to [992] under which “Umbertus…et mee conjugis…Giberge” donated property "in villa…Curtis-Secreta…in comitatu Tornodorense" to Saint-Michel de Tonnerre[171]. Ernest Petit suggests this co-identity, pointing out that Coussegré was situated in the domaine of Chaource, which in part was a dependency of the county of Bar-sur-Seine[172]. There appears to be no other evidence of the existence of Rainard, son of Raoul, and Bouchard points out that the dating of the charter in question is uncertain[173]. She suggests that it is more likely that "Rainardus comes" was either Rainard Comte de Sens or Rainard Comte de Tonnerre, the son of Ermengardis. However, the latter suggestion appears incorrect as "Miles comes", who would have been the father of Rainard Comte de Tonnerre, is also named in the [992] charter. "…Raynardi comitis…Milonis comitis…" subscribed a charter dated to [997] which deals with the property at Coussegré[174]. m ---. The name of Rainard’s wife is not known. Rainard & his wife had [one possible child]:

i) [ERMENGARDE (-after 1018). Ernest Petit suggests that Ermengarde, wife of Milon [III] Comte de Tonnerre, was the daughter of Rainard and heiress of Bar-sur-Seine[175]. A family connection is indicated by the charter dated to [992/1005] under which “Milo comes Tornodorensis castri” donated property "in villa…Curtis-Secreta" to the monastery of Saint-Michel, with the consent of “coniugis mee Ermengarde et carissimorum filiorum meorum Achardi, Rainardi et Alberici”[176], the property being the same as the subject of the [992] charter witnessed by "…Raynardus comes…"[177]. m MILON [IV] Comte de Tonnerre, son of --- ([950/65]-1002 or after).]

B. COMTE de BAR-sur-SEINE (TONNERRE)

The family of the Comtes de Tonnerre presumably acquired the county of Bar-sur-Seine as a result of the marriage of Ermengarde (see above) and Milon [IV] Comte de Tonnerre, who was related to Hugues Rainard who is shown below although the precise relationship has not been ascertained.

1. HUGUES RAINARD de Tonnerre, son of MILO [V] Comte de Tonnerre & his wife Aceka --- (-2/3 Apr 1084). “Milo comes castri Tornodori” donated property to Saint-Michel de Tonnerre, by charter dated 29 Sep 1046, which specifies that after the death of “supradicti Milonis regnante filio eius Hugone…”, signed by “Hugonis qui et Raynardi…comitis…”[178]. He succeeded his father as Comte de Tonnerre et Comte de Bar-sur-Seine 1046. Archdeacon at Langres. Bishop of Langres 1065.