The County of Brienne was a medieval county in France centered on Brienne-le-Château.
Counts of Brienne
Engelbert I (c. 950 – c. 968)
Engelbert II (c. 968 – c. 990)
Engelbert III (c. 990 – c. 1008)
Engelbert IV (c. 1008 – c. 1035)
Walter I (c.1035 – c. 1090)
Erard I (c. 1090 – c. 1120?)
Walter II (c. 1120? – c. 1161)
Erard II (c. 1161 – 1191)
Walter III (1191–1205)
Walter IV (1205–1246)
John of Brienne (1205/1206–1221), ruled on behalf of the above
John I (1246– c. 1260)
Hugh (c. 1260–1296)
Walter V (1296–1311)
Walter VI (1311–1356)
Isabella (1356–1360) with her son:
Sohier (1356–1364)
Walter VII (1364–1381)
Louis I (1381–1394)
Margaret (1394–1397) with her husband:
John II (1394–1397)
Peter I, comte de St-Pol (1397–1433)
Louis II, comte de St-Pol (1433–1475)
Peter II, comte de St-Pol (1475–1481)
Anthony I, Count of Ligny (1481–1519)
Charles I, Count of Ligny (1519–1530)
Anthony II, Count of Ligny (1530–1557)
John III, Count of Ligny (1557–1576)
Charles II, Duke of Brienne, (1576–1608) (created Duke of Brienne in 1587; extinct on his death)
Louise, Countess of Brienne (1608–1647)
Louise de Béon (1647–1665) with her husband:
Henri-Auguste de Loménie, comte de Brienne (1647–1666)
Louis Henri de Loménie, comte de Brienne (1666–1698)
Andrew Louis Henri de Loménie, comte de Brienne (1698–1743)
Nicholas Louis de Loménie, comte de Brienne (1743–1758)
Athanase Louis Marie de Loménie, comte de Brienne (1758–1794)