Grotte de Lourdes

The cult of the Virgin is ancient in Lorraine, particularly on the Hill of Sion. The apparitions of Lourdes after those of La Salette mark the souls of a very Christianized population in the countryside. Pilgrimages to Lourdes gained momentum in the 1880s. In 1883, there were 1,600 pilgrims from Lorraine. The momentum was given. The idea naturally came to evoke or reproduce the Massabielle cave.
bruley.mairie54.fr/fr/la-replique-de-la-grotte-de-lourdes.html

The Virgin Mary, who is depicted and venerated here, is that of Lourdes. This well-known Marian pilgrimage site is located in the French Pyrenees and is visited by a large number of people every year, including many sick people who are hoping for a cure. The devotional image of Our Lady has found widespread use - not only in France - Lourdes chapels and graves were built by believers everywhere.
The ecclesiastical commemoration day "Our Lady in Lourdes" is on February 11th, this is the anniversary of the apparition of Mary (1858), when Our Lady appeared to 14-year-old Bernadette Soubirous in a rock grotto not far from Lourdes. Bernadette later became a nun and died at the age of only 35. On December 8th (the feast of the Immaculate Conception of Mary), 1933, she was canonized by Pope Pius XI.
The day of remembrance of the Lourdes Madonna is also World Day of the Sick.