On 29 March 1924 - 100 years ago - Bavaria and the Holy See concluded a new concordat after almost five years of negotiations. The one from 1817, which had regulated state-church relations until then - albeit not entirely without conflict - was considered invalid by all sides. For Bavaria, humiliated domestically in "Weimar" and powerless in foreign policy, the new agreement was a political success that they were prepared to buy with considerable concessions. Despite numerous changes, the Concordat is still largely valid today.