Ainora (1102–1147) daughter of Stephen, Count of Blois and Adela of Normandy, also known as Eleanor of Champagne, the first wife of Ralph I, Count of Vermandois who was displaced by Eleanor of Aquitaine's sister Petronilla of Aquitaine, leading to a two years' war (1142–44) in Champagne.
The castle was founded in the 10th century by Odo I, Count of Blois.
The fortifications were attacked and occupied by Odo II of Blois-Champagne in 1032 during the conflict after Rudolph's death.
Count | Blois | Count Basie | count | Count Dracula | The Count of Monte Cristo | Imperial Count | Count of Flanders | Count of Barcelona | Count Basie Orchestra | Gaspar de Guzmán, Count-Duke of Olivares | Count of Soissons | You Can Count on Me | Jean-Frédéric Phélypeaux, Count of Maurepas | Count Palatine | Count palatine | Count of Paris | John II, Count of Rietberg | Count of Nevers | count of Blois | William I, Count of Nassau-Dillenburg | Simon VI, Count of Lippe | Ramon Berenguer II, Count of Barcelona | Ramon Berenguer I, Count of Barcelona | Prince Gaston, Count of Eu | Peter II, Count of Savoy | Juan Vicente de Güemes, 2nd Count of Revillagigedo | Henry of Blois | Gustav Horn, Count of Pori | Gilbert, Count of Gravina |
When the House of Bar, which ruled in Upper Lorraine, became extinct in 1033, with the death of his cousin Frederick III, Conrad made him duke of both duchies, so that he could assist in the defence of the territory against Odo II, count of Blois, Meaux, Chartres, and Troyes (the later Champagne).
Guy II of Blois-Châtillon (died December 22, 1397), the youngest son of Louis I of Châtillon and Joan of Avesnes, was count of Blois and lord of Avesnes, Schoonhoven, and Gouda 1381–1397, and lord of Beaumont and Chimay.
Theobald VI of Blois (French: Thibaut) (died 1218) was count of Blois and Clermont-en-Beauvaisis from 1205 to 1218.
William, Count of Sully (c.1085–c.1150), count of Blois from 1102–07, brother of King Stephen of England