House of Blois

House of Blois
Royal house
Arms of the House of Blois
CountryWest Francia
France
Navarre
England
Jerusalem
Founded906; 1118 years ago (906)
FounderTheobald the Elder
Final rulerBlois: Margaret, Countess of Blois
Champagne and Navarre: Joan I of Navarre
Sully and Boisebelle: Mary, Lady of Sully and Princess of Boisebelle
Sancerre: Margaret, Countess of Sancerre
Titles
Lesser titles:
Estate(s)Blois, Champagne, Navarre, England, Sancerre, Boulogne, Aumale, etc
Dissolution1???
Cadet branches
  • House of Blois-Champagne
    • House of Blois-Chartres
    • House of Blois-Navarre
    • House of Sancerre
    • House of Lacarre
  • House of Sully
    • House of Sully-Beaujeu
  • House of Champlitte
    • House of Champlitte-Pontailler
  • House of Aumale

The House of Blois (French: [blwa]) was a noble family that arose in the Kingdom of West Francia in the early 10th century, and whose prominent members were often named Theobald (Thibaud, Thibault, Thibaut in French).