Alice Thouars Duchess of Brittany
- Born: 1201
- Marriage: Pierre de (Peter of) Dreux in 1213
- Died: 21 Oct 1221 at age 20
The marriage of the infant Alice to Capetian cadet Peter of Dreux in 1213, began the new House of Dreux. This allowed Brittany a measure of autonomy again, although continuously giving lip service to Capetian sovereignty. After the Breton War of Succession, Brittany still had links with the English Crown through the Earldom of Richmond, until the Wars of the Roses forced Richmondshire to become partisan with the House of Lancaster under the Tudor dynasty. Richmond became a dukedom in its own right, as the former Breton rulers would not be able to regain the honour that brought King Henry VII of England to the throne. A disoriented and shut out Brittany became royally subsumed into France, during a tapering reign of the Montfort house. The present holder of Richmond owes the honorific title Duke of Aubigny, in descent from Breton Louise de Kérouaille, Duchess of Portsmouth.
Alix of Thouars was the nominal Duchess of Brittany between 1206 to her death. She was the daughter of Constance, Duchess of Brittany and Guy of Thouars. In 1206, king Philip II of France withdrew Brittany from her father and became himself the regent of the duchy in Alix’s name. In 1213, the king organized her marriage to his cousin Peter of Dreux, who became the regent. Alix died in childbirth, without having ever much control over her own inheritance. She was succeeded in the duchy by her son John I, but Peter remained the de facto ruler of Brittany until 1237.
Alice married Pierre de (Peter of) Dreux, son of Robert II Count of Dreux and Unknown, in 1213. (Pierre de (Peter of) Dreux was born about 1190 and died in 1251.)