Geoffrey II of Thouars (990 - 1055), was the son of Savary III and the viscount of Thouars from 1015 to 1043.
Geoffrey succeeded his uncle Ralph I in 1015, continuing the war against William V of Poitiers and Hugues IV of Lusignan, and capturing the castle of Mouzeuil.After years of indecisive warfare, peace was sealed with the marriage of the daughter of Ralph I, Audéarde, with Hugh IV of Lusignan.
Geoffrey's relations with Fulk III Nerra, Count of Anjou, were strained as a result of the castle built by Geoffrey at Montfauconin 1026. The castle was a threat to the county of Anjou; in response, Fulk's castellan, Girorius, halted the castle's construction at the cost of his own life.
Despite this hostility, Geoffrey allied with the son of Fulk Nerra, Geoffrey II of Anjou, and assisted him in his attempt to seize power in the County of Poitiers and the Duchy of Aquitaine. They devastated the surroundings of Poitiers, while William VI, Duke of Aquitaine did the same in the Angevin regions of Loudun and Mirebeau. On 9 September 1033, Geoffrey Martel and Geoffrey II of Thouars defeat William at Moncontour.
Geoffrey de Thouars became a monk at Saint-Michel-en-l'Herm just before dying in 1055.
Geoffrey married Agnès de Blois, daughter of Odo I, Count of Blois and Bertha of Burgundy,they have:
Anjou was a French province straddling the lower Loire River. Its capital was Angers and it was roughly coextensive with the diocese of Angers. Anjou was bordered by Brittany to the west, Maine to the north, Touraine to the east and Poitou to the south. The adjectival form is Angevin, and inhabitants of Anjou are known as Angevins. During the Middle Ages, the County of Anjou, ruled by the Counts of Anjou, was a prominent fief of the French crown.
William IV, called Fierebras or Fierebrace, was the Duke of Aquitaine and Count of Poitou from 963 to his retirement in 990.
William the Great was duke of Aquitaine and count of Poitou from 990 until his death. Upon the death of the emperor Henry II, he was offered the kingdom of Italy but declined to contest the title against Conrad II.
Fulk III, the Black, was an early Count of Anjou celebrated as one of the first great builders of medieval castles. It is estimated Fulk constructed approximately 100 castles, along with abbeys throughout the Loire Valley in what is now France. He fought successive wars with neighbors in Brittany, Blois, Poitou and Aquitaine and made four pilgrimages to Jerusalem during the course of his life. He had two wives and three children.
Fulk II of Anjou, called le Bon was Count of Anjou from 942 to his death.
Geoffrey I of Anjou, known as Grisegonelle, was count of Anjou from 960 to 987.
Conan I nicknamed Le Tort was the Duke of Brittany from 990 to his death.
Odo I, Count of Blois, Chartres, Reims, Provins, Châteaudun, and Omois, was the son of Theobald I of Blois and Luitgard, daughter of Herbert II of Vermandois. He received the title of count palatine, which was traditional in his family, from King Lothair of West Francia.
Hugh IV, called Brunus, was the fourth Lord of Lusignan. He was the son of Hugh III Albus and Arsendis de Vivonne He was a turbulent baron, who brought his family out of obscurity and on their way to prominence in European and eventually even Middle Eastern affairs.
Theobald I (913–975), called the Trickster, was the first count of Blois, Chartres, and Châteaudun as well as count of Tours.
Adelaide-Blanche of Anjou was, by her successive marriages, countess of Gévaudan and Forez, of Toulouse, of Provence, and of Burgundy, and queen of Aquitaine. She was the regent of Gevaudan during the minority of her sons in the 960s, and the regent of Provence during the minority of her stepson from 994 until 999.
Herbert I, called Wakedog, was the count of Maine from 1017 until his death. He had a turbulent career with an early victory that may have contributed to his later decline.
Bourgueil Abbey was a Benedictine monastery located at Bourgueil, historically in Anjou, currently in Indre-et-Loire and the diocese of Angers. The founder was Emma of Blois, daughter of Theobald I of Blois, and by her marriage, duchess of Aquitaine.
Ermengarde of Anjou,, was the Countess of Rennes, Regent of Brittany (992–994) and also Countess of Angoulême.
Agnes of Burgundy was Duchess of Aquitaine by marriage to Duke William V and Countess of Anjou by marriage to Count Geoffrey II. She served as regent of the Duchy of Aquitaine during the minority of her son from 1039 until 1044. She was a daughter of Otto-William, Count of Burgundy and Ermentrude de Roucy and a member of the House of Ivrea.
William Taillefer, numbered William II or William IV, was the Count of Angoulême from 987. He was the son of Count Arnald II Manzer and grandson of Count William Taillefer I. He stood at the head of the family which controlled not only the Angoumois, but also the Agenais and part of Saintonge. By the time of his death he was "the leading magnate in [the west] of Aquitaine[, but his] eminence ... proved temporary and illusory," evaporating on his death in succession squabbles, revolts and the predations of his erstwhile allies. The principal sources for William's career are Ademar of Chabannes and the anonymous Historia pontificum et comitum Engolismensium.
Emma of Blois was Duchess consort of Aquitaine by marriage to William IV, Duke of Aquitaine. She ruled Aquitaine as regent for her son, William V, Duke of Aquitaine, from 996 until 1004.
Aimery IV viscount of Thouars was a companion of William the Conqueror on his Invasion of England in 1066.
The County of Châteaudun was held in the 9th century by counts who also held the County of Blois. Theobald I created the first Viscount of Châteaudun with the appointment of Geoffrey I, founder of the House of Châteaudun. The viscounts were entrusted with the government of the county of Châteaudun, records of whom are continuous from the mid-10th century. The actual rule of Châteaudun between the late 9th and the mid-10th centuries, and the relationships between the count and viscounts, is uncertain. The county was revived in 1439 when the region was recreated as the County of Dunois and granted to Jean Levieux Valois des Orléans, the illegitimate son of Louis I, Duke of Orléans, son of Charles V, King of France.