Thierry de Mousson, Comte de Montbéliard

from http://fmg.ac/Projects/MedLands/burgkmontb.htm#ThierryMontbeliarddi... v4.4 Updated 16 September 2020

THIERRY de Mousson, son of THIERRY de Mousson & his wife Ermentrude de Bourgogne (Comté) ([1076/78]-[mid-Jan] 1163). "Filia Wilelmi comitis de Burgundia Hermentrudis et filii sui Fridericus, Raginaudus, Theodericus" founded the Cluniac abbey of Froidefontaine by charter dated 8 Mar 1105 in which she names "suis antecessoribus…filiis autem Theoderici atque sue uxoris Hermentrudis, Lodewico, Wilelmo, Hugone". He inherited his families territories along the Meuse valley in 1103. He was expelled by his Meuse subjects in [1113] because of his intolerable behaviour, and transferred to the county of Montbéliard: the Chronicle of Alberic de Trois-Fontaines names "Theodericus" as brother of "Raynaldum…comes Barri et Montionis" specifying that Thierry was expelled in 1113 and retained only the county of Montbéliard. Comte de Montbéliard. Etienne Bishop of Metz declared that “frater meus Teodericus comes de Montbiliart” recognised the incorrectness of his claims relating to Gorze Abbey by charter dated to [1138/63], naming “cognati nostri Theoderic, Mettensis primicerii”. A charter dated to [1145] confirms the donations to Belchamp abbey by "dominus Theodericus comes de Monte Beligardis", with the consent of "Theoderici filii sui". Humbert Archbishop of Besançon confirmed the foundation of Grâce-Dieu abbey by “dominus Theobaldus de Rubeo Monte et dominus Richardus de Montefalcone...assensu uxorum suarum atque filiorum suorum”, in the presence of “...Theodoricus comes de Monte Belli Cordis...”, by charter dated “V Non Mai” 1147. "Theodericus comes de Monte Biligardis" donated toll revenues to numerous abbeys, after the death of "Theoderici filii mei", by charter dated 1160[. His death, and that of his son, are recorded in 1163 and before 1160 respectively in the necrology of the abbey of Saint-Pierre le Vif, Sens, where their supposed ancestor Louis died [1016/25].

m ---. The name of Thierry's wife is not known.

Comte Thierry & his wife had four children:

• 1. SOPHIE de Montbéliard (-Apr 1148). The Chronicle of Alberic de Trois-Fontaines refers to the first of the two daughters of "Theodoricum de Monte Beliardi" as the wife of "Richardus de Monte Falconis", and their sons "Amedeum Montis Beliardi et archiepiscopum Theodericum Bisuntinensem"[8]. The necrology of Besançon Saint-Etienne records the death in Apr 1148 of "Sophia uxor Richardi de Montefalcone"[9]. m ([1124/30]) RICHARD de Montfaucon, son of AMEDEE Seigneur de Montfaucon & his wife --- de Neuchâtel (-1162).
• 2. ETIENNETTE de Montbéliard (-after 4 Dec 1160). The Chronicle of Alberic de Trois-Fontaines refers to the second of the two daughters of "Theodoricum de Monte Beliardi" as the mother of "Ludovicus de Salvernia"[10]. Her name is confirmed by the charter dated 1172 under which her son "Ludovicus senior comes de Sarwerden" records donations by "avus meus dominus Fridericus comes de Sarwerden et uxor eius Gertrudis…domino Volmaro patre meo et Stephania mea matre…frater meus Ludovicus" to the abbey of Wœrschweiler (Wernereswilre)[11]. m FOLMAR von Saarwerden, son of FRIEDRICH [I] Graf von Saarwerden & his wife Gertrud --- (-1165 or after). He took part in the Second Crusade, returning before 10 Aug 1149 when he is recorded at Varangéville[12].
• 3. ERMENTRUDE de Montbéliard (-1171 or before). Her parentage and marriage are confirmed by the charter dated 1171 under which her nephew "Amedeus comes Montis Beligardis" donated property to the abbey of Belchamp, for the soul of "Ermentrudis materteræ suæ comitissæ de Rupe", witnessed by "…Oto comes de Rupe præfate comitisse sponsus…"[13]. m EUDES de la Roche, son of SIMON Comte de la Roche & his wife --- (-after 6 Sep 1178).
• 4. THIERRY de Montbéliard (-before 1160). A charter dated to [1145] confirms the donations to Belchamp abbey by "dominus Theodericus comes de Monte Beligardis", with the consent of "Theoderici filii sui"[14]. "Teodoricus comes Montis Biligardis" donated property to the church of Saint-Maimbœuf de Montbéliard, with the consent of "patris mei T. comitis…coniux nostra Gertrudis", by charter dated to [1155], witnessed by "Teobaldus de Rubeo Monte, Gill vicecomes, Rodulfus de Falcunnez"[15]. His death is recorded before 1160 in the necrology of the abbey of Saint-Pierre le Vif, Sens[16]. His death is confirmed by the charter dated 1160 under which his father "Theodericus comes de Monte Biligardis" donated toll revenues to numerous abbeys, after the death of "Theoderici filii mei"[17]. m (before 1155) GERTRUD von Habsburg, daughter of WERNER Graf von Habsburg & his wife --- (-15 Feb [after 1155]). "Teodoricus comes Montis Biligardis" donated property to the church of Saint-Maimbœuf de Montbéliard, with the consent of "patris mei T. comitis…coniux nostra Gertrudis", by charter dated to [1155][18]. A Habsburg genealogy names "Adelberctum, Gerdrudem de Mümpelgard, Richenzam de Fierrito" as the children of "Wernherus"[19].