County of Bar-sur-Seine
The county of Bar-sur-Seine included the municipality of Bar-sur-Seine in what is now the Aube department . The Counts of Bar-sur-Seine were vassals of the Dukes of Burgundy .
House Woevre
Tonnerre House
- 997 - 1039 Rainald II. Married to Ervise, daughter of Rudolf III. (as Rainald I, Count von Tonnerre )
- 1039 - 1046 Milon I brother, married to Azéka, daughter of Rudolf III. (as Milon IV, Count von Tonnerre)
- 1046 - 1065 Hugo Rainald Sohn (Count of Tonnerre, Bishop of Langres)
House Brienne
- 1084 - 1090 Walter I , Count of Brienne and brother-in-law of Hugo Rainald
- 1065 - 1126 Milon II son
- 1125 - 1146 Guido son
- 1146 - 1151 Milon III. son
- 1151 - 1159 Theobald brother
- 1159 - ???? Pétronille daughter of Milon III.
House Le Puiset
- ???? - 1189 Hugo (IV.) Of Le Puiset husband of Pétronille (Vice-Count of Chartres)
- 1189 - 1219 Milon IV son
After Count Milon's son and heir, Walter, died on July 30, 1219 at the siege of Damiette , he named his sister, Margarethe, and his niece, Laurence de Sennecy, his heirs with equal rights. Count Milon fell on October 17 or 18 of the same year, also before Damiette. The two heirs sold their respective shares in Bar-sur-Seine to the Count of Champagne in 1220 . Together with this, Bar-sur-Seine was united with the French crown domain in 1284 .
House Valois-Angoulême
- Jeanne Bâtarde d'Angoulême, † after 1531, 1522 Comtesse de Bar-sur-Seine; ⚭ Jean V. de Longwy, † 1520/21, Seigneur de Givry, Baron de Pagny et Mirebeau ( Chaussin House )
- Jacquette de Longwy, their daughter, † 1561, Comtesse de Bar-sur-Seine; ⚭ 1538 Louis III. de Bourbon, duc de Montpensier , † 1582 ( Bourbon ) - the grandparents of William of Orange