Joan, Countess of Blois
Joan of Châtillon was Countess of Blois from 1280 to 1291, and Lady of Avesnes.
She was the daughter of John I, Count of Blois and Alix of Brittany, Dame de Pontarcy.
Joan received the County of Chartres from her father during his life; she later... Wikipedia
Born: 1258
Died: January 29, 1292 (age 34 years), Blois, France
Partner: Peter I, Count of Alençon (1272–)
Great-grandparents: Margaret, Countess of Blois, Walter III of Châtillon, Theobald I of Navarre, and more
Parents: John I, Count of Blois and Alix of Brittany, Dame de Pontarcy