The St. Bernulphusgilde or Guild of St. Bernulphus was a Dutch Catholic secret society established on December 1, 1869. Its intention initially was to serve as a trade union and protect national traditions of old craftsmanship in religious art and church architecture. Information about the association's meetings, as well as trade information, was published in their magazine The Guild Book. The association was considered a guild and named after the 11th-century bishop of Utrecht, a passionate church builder named Bernold.[1]