Geoffrey I de Châteaudun, comte de Mortagne et du Perche

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Geoffroy I du Perche (de Châteaudun), Comte de Mortagne & du Perche

Spanish: Conde Godofredo IV de Perche, Comte de Mortagne & du Perche
Also Known As: "of Morgagne", "Count De Perche"
Birthplace: Perche, Normandy
Death: October 1100 (53-62)
Perche, Orne, Basse-Normandie, France
Place of Burial: St Dionysius Monastery
Immediate Family:

Son of Comte du Perche Rotrou de Châteaudun, Vicomte de Châteaudun. Comte de Mortagne and Countess Adelise de Bellème, De Mortagne
Husband of Béatrix de Ramerupt, dame de Montdidier
Father of Marguerite de la Perche, Countess of Warwick; Julienne du Perche; Mathilde du Perche, comtesse du Perche; Rotrou I "le Grand" de Châteaudun, comte du Perche and Jeanne du Perche
Brother of Hugues III, vicomte de Châteaudun and Rotrou de Châteaudun, seigneur de Montfort

Occupation: Count of Perche and Mortagne; fought at battle of Hastings (14 October 1066), COUNT OF PERCHE, Comte, du Perche, Sieur, de Mortagne, de Nogent-le-Rotrou, greve i Perche, Count de Mortagne et tu Perche, count
Managed by: Terry Jackson (Switzer)
Last Updated:

About Geoffrey I de Châteaudun, comte de Mortagne et du Perche

Source: The Conqueror and His Companions by J.R. Planché, Somerset Herald. London: Tinsley Brothers, 1874. Online at


Guillaume de Poitiers distinctly enumerates "Godfredus Rotronis Moritoniæ comitus filius" as one of the combatants at Senlac, and "De Meaine il viel Geffrai" is considered by Monsieur le Prévost a misreading for "De Mortaigne," Duchesne's MS. reading "Marreigne." There is certainly no reason for believing that Geoffrey de Mayenne, the implacable enemy of William the Conqueror, took any part whatever in the invasion of England in I066; but I think Wace was misled by some report to believe he did, because the epithet "le viel" would not at all apply to Geoffrey de Mortagne, who was very young at that period, and did not succeed his father, Rotrou 1, Vicornte de Châteaudun and Comte de Mortagne, for at least thirteen years after the Conquest, as the Count was certainly living in 1079, at the time of the dedication of the Church of St. Denis de Nogent, the; precise date of his death being unknown.

Guillaume de Poitiers so completely identifies his man by describing him as "the son of Rotrou, Count of Mortagne,'" that whatever the mistake may be in the "Roman de Rou," I am justified in preferring the archdeacon's authority, particularly as it is supported by the testimony of Orderic, who gives Geoffrey a very high character. "This Count," he tells us, "was magnanimous, handsome, and strong; he feared God, was a devout friend of the Church, a staunch protector of her clergy and the poor. In peace he was gentle and courteous, and of most obliging manners; in war he was powerful and successful, and became formidable to the neighbouring princes who were his enemies.

The nobility of his own birth and that of his wife Beatrice rendered him illustrious above all his compeers, and he had amongst his subjects warlike barons and brave governors of castles. He gave his daughters in marriage to men of the rank of counts: Margaret to Henry, Earl of Warwick, and Juliana to Gilbert de l'Aigle, from whom sprung a noble race of handsome children. The glory of Count Geofirey was exalted by such a progeny, and he maintained it by his valour and courage, his wealth, and alliances. Above all, having the fear of God, he feared no man, but marched boldly with a lion's port.

Laying claim to the strong Castle of Domfront, which had belonged to his great-grandfather, Warin de Belesme, and other domains as his right, he endeavoured to dispossess his cousin Robert (de Belesme) of them. He was grieved to harass the unarmed and innocent, but he could not bring the public enemy (for such assuredly was Robert de Belesme) with whom he had a just quarrel to a fair field for deciding it.

"Towards the close of the year 1100, Geoffrey fell sick unto death, and having called about him the lords of Le Perche and Le Corbonnais, who were vassals to him as Count of Mortagne, he put his affairs in order with great wisdom, praying them to keep his lands and strong places for his only son Rotrou, who had gone in pilgrimage to Jerusalem. Then the brave lord having duly received all the rites of the Church, and assumed the habit of a Cluniac monk, died in his Castle of Nogent-le-Rotrou in October 1100, and was buried in the church of the monastery of St. Dionysius the Areopagite, founded in 1030 by his grandfather, Geoffrey 1, and which he richly endowed with lands and other possessions."

At the close of the year his son Rotrou returned in safety from the Holy Land, and took possession of his estates. On the fifth day after reaching home, being Sunday, he paid his devotions at the Church of St Denis, at Nogent, where his father had been buried, and made his offering on the altar of St. Denis, with the palms he had brought from Jerusalem.

By his wife Beatrice, daughter of Hilduin, fourth Comte de Montdidier and Ronci, Geoffrey had besides Rotrou, who succeeded him, and the two daughters named above, a third, daughter named Mahaut or Mathilde, married first to Raymond l, Vicomte de Turenne, and secondly to Gui de las Tours, in Limousin.

From his daughter Margaret, Countess of Warwick, descended the celebrated Beauchamps and Nevils, Earls of Warwick, and many other illustrious personages.

Added to this site through the courtesy of Fred L. Curry, who provided a photocopy of the section.


Geoffrey du Perche et Mortaigne I, died 1100. He was the son of 12. Rotrou de Chateaudun I and 13. Adeline Domfront. He married 7. Beatrice de Montdidier.

7. Beatrice de Montdidier She was the daughter of 14. Hildouin de Montdidier and 15. Alice de Roucy.

Children of Geoffrey Mortaigne and Beatrice de Montdidier are:

i. Julienne du Perche, married Gilbert l'Aigle 1091; born Bef. 1047.

3 ii. Mahaut du Perche, born Bet. 1100 and 1105 in Perche, Normandy, France; died 18 May 1143; married Raymond de Turenne I 1122.

iii. Margaret du Perche, born Abt. 1045; died Abt. 1136; married Henry de Beaumont de Newburgh Bef. 1100 in Perche, Normandy, France; born 1045 in Neubourg, Manche, France; died 1123 in Pontaudemer, Normandy, France.

Comte de Perche et Mortagne

Geoffrey fought in the "Battle of Hastings" in 1066 alongside William the Conqueror. His name appears on the "Dives-sur-Mer Roll" as Geoffrey du Perche, but on the "Battle Abbey Roll" and the "Falaise Roll" as Geoffrey, Seigneur de Mortagne. The book "Ecclesiastical History of Oderic Vitalis" by Margery Chibnall states; "Geoffrey du Perche, son of Rotrou of Mortagne and other Earls and Magnates too numerous to name received great revenues and fiefs in England from King William. So foreigners grew wealthy with the spoils of England, whilst her own sons were either shamefully slain or driven as exiles to wander hopelessly thru foreign kingdoms." In spite of the above statement regarding his acquisitions in England after the conquest, he is not found listed in the DOMESDAY BOOK of 1086 as a tenant-in-chief. If he received holdings from "The Conqueror" for his services rendered at the conquest, perhaps he disposed of those holdings and returned to Normandy before 1086.

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Geoffrey I de Châteaudun, comte de Mortagne et du Perche's Timeline

Perche, Normandy
Mortagne au Perche, Orne, Normandy, France
July 19, 1074
Mortagne-au-Perche, Orne, Normandy, France
Mortagne-au-Perche, Orne, Normandy, France
Mortagne-au-Perche, Orne, Normandy, France
October 1100
Age 58
Perche, Orne, Basse-Normandie, France