It was held by an independent line of counts until 1226. One of these, Geoffroy V, would have been a leader of the Fourth Crusade had he not died before the assembled forces could depart. The county then became a possession of the crown, which removed part of it to create the county of Alençon.
After 1325, both counties were generally held by a member or members of a cadet line of the House of Valois. Upon the death without children of the last Duke of Alençon in 1525, it returned to the crown, and was granted only sporadically thereafter.
- 1 Lords of Mortagne, lords of Nogent-le-Rotrou and viscounts of Châteaudun
- 2 Lords and counts of Perche and Mortagne
- 3 Counts of Perche
- 4 Dukes of Perche
- 5 English title
- 6 References
Lords of Mortagne, lords of Nogent-le-Rotrou and viscounts of Châteaudun
The lords of Perche were originally titled lords of Mortagne-au-Perche, until Routrou III adopted the style of count of Perche in 1126, thus uniting the lordship of Mortagne-au-Perche, the viscountcy of Châteaudun and the lordship of Nogent-le-Rotrou in the countship of Perche and Montagne.
Lords of Mortagne
House of Rorgonid
- Hervé I, 941- 955
- Hervé II, 974–980, son of the previous
Here after, the title is merged with the viscount of Châteaudun and the lord of Nogent-le-Rotrou.
Lords of Nogent-le-Rotrou
House of Nogent-le-Rotrou
- Rotrou I, 960–996
- Fulcois, son of the previous and husband of [[Melisende, Viscountess of Châteaudun],, daughter of Herve I]
Here after, the title is merged with the viscount of Châteaudun and the lord of Mortagne-au-Perche
Viscounts of Châteaudun
Lords and counts of Perche and Mortagne
House of Châteaudun
- Fulcuich, c. 1000
- Geoffroy I, d. bef. 1041 (viscount of Châteaudun, lord of Nogent-le-Rotrou and of Mortagne-au Perche)
- Hugh I, d. c. 1077–1080 (viscount of Châteaudun, lord of Nogent-le-Rotrou and of Mortagne-au Perche)
- Rotrou II, d. c. 1077–1080 (viscount of Châteaudun, lord of Nogent-le-Rotrou and of Mortagne-au Perche)
Counts of Perche
House of Châteaudun
- Geoffroy II, d. 1100, a companion of William the Conqueror
- Rotrou III the Great, d. 1144 (also Count of Mortagne 1126–1144), married with Matilda (second wife) and Hawise d'Evreux, daughter of Walter of Salisbury (third wife)
- Rotrou IV, killed at Siege of Acre (1191), 1191 (married Matilda (died 1184) daughter of Theobald IV)
- Geoffroy III, d. 1202 (married Matilda of Saxony (1172-1209/10))
- Thomas, killed at the Battle of Lincoln, 1217
- William, d. 1226 (Bishop of Châlons-sur-Marne)
Here after the county returned to the royal domain.
House of Valois
- 1325–1346 : Charles II of Alençon
- 1346–1377��: Robert of Alençon
- 1377–1404 : Peter II of Alençon
- 1404–1415 : John I of Alençon
- 1415–1474 : John II of Alençon
The county was confiscated by the crown between 1474 and 1478, but was then returned to the family.
- 1478–1492 : René of Alençon
- 1492–1525 : Charles IV of Alençon, son of, married Margareth of Navarre
- 1525–1549 : Margareth of Navarre, widow of
After the death of Margareth of Navarre the fief went to the royal domain. Here after the title of duke of Perche was personally granted by the king from time to time.
Dukes of Perche
House of Valois
- Francis, duke of Perche (1566–1584)
House of Bourbon
- Louis, duke of Perche (1771–1814)
- Thomas Montacute, 4th Earl of Salisbury was created Earl of Perche in 1419 as part of Henry V of England's policy of creating Norman titles for his noblemen.
- Thomas Beaufort, Count of Perche was created Count of Perche in December 1427, but the title was contested with John II of Alençon.
- Humphrey Stafford, 6th Earl of Stafford, 1st Duke of Buckingham was created count of Perche in 1431 by Henry VI of England as titular king of France.
- Encyclopædia Britannica, 11th Ed. Vol XXIV. Cambridge: Cambridge University Press, 1910. pg 78.