The most recent building works, taking place in 1932, saw the erection of a Baroque bell tower, topped with a bulbous dome.
Today, the basilica draws hundreds of thousands of pilgrims a year, and is a significant site of pilgrimage in the Alsace region.
[1] The origins of the priory date back to 730, when a number of Benedictine monks started a mission to convert the population of Alsace.
The monks refused to sign the Constitution of the Clergy, but the pilgrimage was restored with the priory in 1801 as part of Napoleon Bonaparte's Concordat of 1801.
[4] The church is also a centre of tourism, due to the history of the priory, and the ornate Baroque interiors and approximately 850 ex-voto images.
The remains are now part of an inn, used to house the many thousands of pilgrims who regularly visit the basilica on a pilgrimage of devotion to Our Lady of Thierenbach.