Duchy of Alençon
The county of Alençon and subsequently the Duchy of Alençon came into being relatively late. The county was formed around 1080 around the rule Bellême , whose heiress Mabile Roger II. De Montgommery († 1094) married, who was the first to bear the title of Count of Alençon. The last of his descendants, Countess Alix , sold the county to King Philip II. King Louis IX in 1220 . gave it in 1268 to his fifth son, Peter , who died without children. Philip IV gave Alençon to his brother Karl von Valois in 1291 , who left it to his second son Charles II , whose descendants kept the county, from 1404 as a peerage and from 1414 as a duchy, until it was united with the crown in 1549.
Lords of Alençon
- ? Yves de Bellême
- ? -1028 Guillaume I de Belleme son
- 1028–1030 Robert de Bellême son
- 1030–? Guillaume II. Talvas de Bellême brother
- ? –1082 Mabile de Bellême's daughter (murdered by Hugh Bunel)
Counts of Alençon
- 1054-1094 Roger II. De Montgommery husband Mabillas (Vice Earl of Hiémois , Earl of Shrewsbury )
- 1094-? Robert II son ( Earl of Shrewsbury )
- ? –1171 Wilhelm III. Talva's son (as Wilhelm I. Talvas Count of Ponthieu , Le Perche , Montreuil and Sées ).
- 1171–1191 Johann I son
- 1191 Johann II son
- 1191-1217 Robert III. Brothers
1217–1269 French crown domain
- 1269–1283 Peter I. 5th son of King Ludwig IX. (received as apanage for part of the county of Le Perche )
1283–1291 French crown domain
- 1291–1325 Charles I, brother of King Philip IV.
- 1325–1346 Charles II son ( died August 26, 1346 in the Battle of Crécy ).
- 1346-1361 Charles III. Son († 1375 , he becomes Dominican in 1361 and Archbishop of Lyon in 1365 )
- 1361–1391 Peter II brother
- 1391–1415 Johann I Son (from 1414 Duke of Alençon, died on October 25, 1415 in the Battle of Azincourt )
Dukes of Alençon
- 1415–1476 Johann II son
- 1476–1492 René son
- 1492–1521 Charles IV's son
- 1509–1549 Margaret of Angoulême wife , Duchess of Alençon, 1517 Duchess of Berry, 1525 sovereign Countess of Armagnac etc.
Alençon reverted to the French crown in 1549.