The County of Mortain was a medieval county in France centered on the town of Mortain. A choice landholding, usually either kept within the family of the Duke (or the King in some cases), or more often it was granted to a Lord in return for royal service and favor. This was the main reason Mortain had so many Counts, as shown below, during its long history.

French Counts of Mortain

• County established by Charlemagne^[1]

786

• Unknown
• Rodulf of Tosny (812–861)
• Hugh of Nogent (861–911)
• Vacant After Rollo's Invasion

Norman Counts of Mortain

• Adémar of Boulogne (918–977)
• Mauger of Corbeil (977–1032)
• William Warlenc^[2](1032–1048)
• Robert, Count of Mortain (See also: Robert of Conteville) 1049–1104)
• William, Count of Mortain (1104–1106)
• Robert II of Vitry (1106–1112)
• Stephen of England (1112–1135)
• Eustace IV of Boulogne (1135–1141)
• Geoffrey of Anjou (1141–1151)
• Henry II of England (1151–1153)
• William of Blois (1153–1159)
• Vacant
• Marie of Boulogne and Matthew of Alsace (1167–1173)
• Vacant
• John I of England (1189–1204) (lost to France)
• Ida, Countess of Boulogne and Renaud de Dammartin (1204–1216)
• Matilda II of Boulogne (1216–1245) and...
  • Philip Hurepel (1216–1233)
  • Afonso III of Portugal (1238–1245)
• Jeanne de Dammartin (1245–1251) and ..
  • Walter of Chatillon (1245–1250)
• Vacant
• Joan II of Navarre (1328–1349)
• Vacant
• Peter d'Évreux (1401–1412)
• Catherine of Alençon (1412–1416) (his widow) and..
  • Louis, Duke of Guyenne (1412–1413)
  • Louis VII of Bavaria, Duke of Bavaria-Ingolstadt (1413–1416)
• Jean Dunois (1416–1417) and..
  • Charles of Le Maine (1416–1417)
  • Charles of Valois, duc de Berry (1416–1417)

English Counts of Mortain

• Edward (1417–1419)
• Thomas Langholme (1419–?)
• John, Duke of Bedford (?–1435)
• Edmund Beaufort, 2nd Duke of Somerset (1435–1449)

French Counts of Mortain

• Charles of Le Maine (1449–1472)
• Charles IV, Duke of Anjou (1472–1481)
• Royal Domain
• Louis II, Duke of Montpensier (1529–1582)
• Francis, Duke of Montpensier (1582–1592)
• Henri de Bourbon, duc de Montpensier (1592–1608)
• Marie de Bourbon, duchesse de Montpensier (1608–1627) and..
  • Gaston de France, duc d'Orléans (1626–1660) (her widower)
• Anne Marie Louise d'Orléans, duchesse de Montpensier (1660–1693)
• Philippe de France, duc d'Orléans (1693–1701)
• Philippe II d'Orléans, duc d'Orléans (1701–1723)
• Louis d'Orléáns, duc d'Orléans (1723–1752)
• Louis Philippe I d'Orléans, duc d'Orléans (1752–1785)
• Louis Philippe II d'Orléans, duc d'Orléans (1785–1786)
• Royal Domain
• Henri d'Orléans, comte de Paris, duc de France (1984–present)

Notes

1. ↑ Einhard: The Life of Charlemagne (trans. & pub. by Harper Brothers, 1880)
2. ↑ There are apparently few certain facts about William Warlenc, who was deprived of the County to the benefit of Robert (sometimes said to have been c.1055).