During the 8th century, Lourdes and its fortress became the focus of skirmishes between Mirat, the local leader, and Charlemagne, King of the Franks. Charlemagne had been laying siege to Mirat in the fortress for some time, but the Moor had so far refused to surrender. According to legend, an eagle unexpectedly appeared and dropped an enormous trout at the feet of Mirat. It was seen as such a bad omen that Mirat was persuaded to surrender to the Queen of the sky by the local bishop. He visited the Black Virgin of Puy to offer gifts, so he could make sure this was the best course of action and, astounded by its exceptional beauty, he decided to surrender the fort and converted to Christianity. On the day of his baptism, Mirat took on the name of Lorus, which was given to the town, now known as Lourdes.
After being the residency of the Bigorre counts, Lourdes was given to England by the Brétigny Treaty which bought a temporary peace to France during the course of the Hundred Years War with the result that the French lost the town to the English, from 1360. In 1405, Charles VI laid siege to the castle during the course of the Hundred Years War and eventually captured the town from the English following the 18-month siege. Later, during the late 16th century, France was ravaged with the Wars of Religion between the Roman Catholics and the Huguenots. In 1569, Count Gabriel de Montgomery attacked the nearby town of Tarbes when Queen Jeanne d’Albret of Navarre established Protestantism there. The town was overrun, in 1592, by forces of the Catholic League and the Catholic faith was re-established in the area. In 1607, Lourdes finally became part of the Kingdom of France.
The castle became a jail under Louis XV but, in 1789, the General Estates Assembly ordered the liberation of prisoners. Following the rise of Napoleonin 1803, he again made the Castle an Estate jail. Towards the end of the Peninsular War between France, Spain, Portugal, and Britain in
