Counts of Ligny
The Lords of Ligny, later Counts of Ligny, ruled the fief of Ligny-en-Barrois during the Middle Ages. In 1240, the seigniory of Ligny-en-Barrois was given by Henry II of Bar as the dowry of his daughter Marguerite, who married Henry V of Luxemburg. Henry bestowed it upon his younger son Waleran in 1281, who was killed at the Battle of Worringen in 1288. In 1364, it was elevated to a county by Guy I, and remained in the Luxembourg family and their descendants until 1719, when it was sold to the Duke of Lorraine by Charles-Francis.
Lords of Ligny
| Image | Name | Lived | Reigned | Emblem | House | Relationship with predecessor |
| Henry I | 1216 – 24 December 1281 | 1240 - 24 December 1281 | House of Luxembourg | Founder of Lordship | ||
| Waleran I | Died 5 June 1288 | 24 December 1281 - 5 June 1288 | House of Luxembourg | Son of Henry I | ||
| Henry II | Died 1303 | 5 June 1288 - 1303 | House of Luxembourg | Son of Waleran I | ||
| Waleran II | Died 1354 | 1303 - 1354 | House of Luxembourg | Brother of Henry II, Son of Waleran I | ||
| John I | Died 17 May 1364 | 1354 - 17 May 1364 | House of Luxembourg | Son of Waleran II |