It was built in 1958, on the initiative of the parish priest of Flaxlanden, Abbé Étienne Bilger, on the eve of his departure for Oltingue where he was to create the Musée Paysan. It was one hundred years after the apparitions of the Virgin Mary to Bernadette Soubirous in Lourdes. Since then, every 15th August, this anniversary is celebrated in Flaxlanden with a torchlight procession.