Counts of Blois

Original coat of arms of the county of Blois.

Later coat of arms of the county of Blois.

The County of Blois was originally centred on Blois, south of Paris, France. One of the chief cities, along with Blois itself, was Chartres.

History

Blois was associated with Champagne, Châtillon (the lords of which tended to reside in Blois), the Dukes of Brittany and, later, with the French royal family. Theobald I served as Regent to Drogo, Duke of Brittany. Bertha of Blois, the daughter of Odo II of Blois, became Duchess Consort of Brittany through her marriage to Alan II, Duke of Brittany. Stephen Henry's son Stephen of Blois became King of England.Charles of Blois, the son of Guy I married Joan of Penthievre the heiress of John III, Duke of Brittany; together, they became principal protagonists in the Breton War of Succession. Upon the death of his only son, Guy II sold the county to Louis of Valois, Duke of Orleans and the county passed to the French royal family. Blois was later important during the Hundred Years' War; Joan of Arc based herself there.

The extent of the county varied over time. The northern portion, bordering on Normandy, was sometimes alienated as the County of Chartres, but the Counts of Blois who possessed it did not use a separate title for it. These lands were finally sold to the crown by Joanne of Châtillon in 1291. In 1439, the area around Châteaudun was separated as the County of Dunois for Jean Dunois.

Counts

• William (???–834), first Count of Blois
• Odo (834–865)
• Robert (865–866)
• Warnegald (878–906), only viscount
• Gello (906–928), only viscount
• Theobald I (928–975), only viscount until 960
• Odo I (975–995)
• Theobald II (995–1004)
• Odo II (1004–1037), also Count of Troyes
• Theobald III (1037–1089), also Count of Troyes
• Stephen Henry (1089–1102), also Count of Meaux
• William the Simple (1102–1107), later Count of Sully
• Theobald IV (1107–1152), also Count of Champagne
• Theobald V (1152–1191)
• Louis I (1191–1205)
• Theobald VI (1205–1218)
• Margaret (1218–1230)
  • Walter (1218–1230)
• Mary (1230–1241)
  • Hugh I (1230–1241)
• John I (1241–1279)
• Joan (1279–1292)
• Hugh II (1292–1307)
• Guy I (1307–1342)

• Charles of Blois - Guy's second son would wage the Breton War of Succession in an attempt to secure the Ducal crown of Brittany

• Louis II (1342–1346)
• Louis III (1346–1372)
• John II (1372–1381)
• Guy II (1381–1397)
• Louis IV (1397–1407), also Duke of Orléans
• Charles (1407–1465), also Duke of Orléans
• Louis V (1465–1498), also Duke of Orléans
• To the royal demesne.
• Gaston (1626–1660), also Duke of Orléans
• To the royal demesne permanently.