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In page Lourdes:

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Up until 1858, Lourdes was a sleepy country town with a population of around 4,000[1] hosting an infantry garrison in the castle, a transit point to the waters at Barèges, Cauterets, Luz-Saint-Sauveur and Bagnères-de-Bigorre, and for mountaineers on their way to Gavarnie.[citation needed]