 Complete the following phrase:  Frances de Châtillon died 1481 was Countess of Périgord, Viscountess of Limoges, and Dame of Avesnes and Châlus. She was the eldest daughter of William, Viscount of Limoges and Isabelle de La Tour dAuvergne. In 1470, she married Alain the Great, Count of Graves and Viscount of Tartas, son of Jean I of Albret and Catherine of Rohan. Through her father, Frances had a claim on the throne of Brittany through the 