The Katharinenkirche (St. Catherine's church) in Oppenheim, Germany, is regarded as important Gothic church building on the Rhine, alongs with the cathedrals of Cologne and Strasbourg. Construction began probably in 1225, when Oppenheim was granted Town privileges. Since the merger of the Lutheran and Reformed congregation in 1822, it is a United Protestant church and its congregation forms part of the Protestant Church in Hesse and Nassau. The church is a venue of church music too.