Alix, Duchess of Brittany
| Alix | |
|---|---|
Alix represented on a window in Chartres Cathedral | |
| Duchess of Brittany | |
| Reign | April 1203 – 21 October 1221 |
| Predecessor | Arthur I |
| Successor | John I |
| Co-ruler | Peter I (1213–1221) |
| Regents | Guy of Thouars (1203–1206) Philip II of France (1206–1213) |
| Born | 1200 Brittany |
| Died | 21 October 1221 (aged 20–21) |
| Burial | 24 November 1225 |
| Spouse | |
| Issue | John I, Duke of Brittany Yolande, Countess of Penthièvre |
| House | Thouars |
| Father | Guy of Thouars |
| Mother | Constance, Duchess of Brittany |
Alix (also Alis, Alice, and of Thouars; 1200 – 21 October 1221) was Duchess of Brittany from 1203 until her death. She was also Countess of Richmond in the peerage of England.