1911 Encyclopædia Britannica, Volume 17… (1911)
“ From the 9th century onwards it was the most important place in Bigorre, largely owing to the fortress which is intimately connected with its history. In 1360 it passed by the treaty of Brétigny from French to English hands, and its governor was murdered by Gaston Phoebus viscount of Béarn, for refusing to surrender it to the count of Anjou. ”
