County of Brienne explained

The County of Brienne was a medieval county in France centered on Brienne-le-Château.

Counts of Brienne

Engelbert I (c.950 - c.968)^[1]
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 (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 of Luxembourg, Lord of Beauvoir (1394 - 1397)
Peter I, comte de St-Pol (1397 - 1433)
Louis I, 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)