The one-time island of Nordstrand is now a peninsula, having been joined to the mainland of Schleswig-Holstein in 1934 through the creation of a dyke and causeway. In 1634 the region suffered a massive storm surge that killed more than 6,400 inhabitants. Despite its then state as a remote wasteland, the soils in and around the Wadden Sea were fruitful, and by the early 1650s the Nordstrand had drawn new inhabitants, including many Catholic immigrants from France and the Netherlands. In 1652 the Schleswig-Holstein Duke Friedrich iii granted them the right to practise their religion on Nordstrand, and two years later a group of Belgian Oratorian priests took up cure of souls at the island's chapel, known as the Theresienkirche. The Oratorians served the Nordstranders until 1740, after which priests appointed by the bishop of Utrecht replaced them. Neither Schleswig-Holstein's incorporation into the kingdom of Denmark in 1807, nor its annexation by Prussia in 1866 dissuaded the islanders from practising their Catholicism, and Nordstrand remained very much an island of faith in what was a strongly Lutheran region. Under Prussian control the priests appointed to serve the island were under the jurisdiction of the bishop of Münster, the last serving until 1999. This book provides the briefest of surveys of this fascinating and unusual history, but its largest contribution lies in providing brief biographies for all the Catholic clergy who served on Nordstrand over almost three and a half centuries. In addition, it includes short treatments of the histories of the Catholic parish school, a Franciscan convent and the benevolent children's hospital that flourished on the remote isle. The diligent spade work presented here, with its careful sourcing of archival records, now provides the raw material for someone interested in writing a narrative history for this singular chapter in church history.