The Regional Church Archives Kassel is the central archive of the Protestant Church of Kurhessen-Waldeck. With around 750,000 parishioners, the regional church is one of Germany's mid-sized regional churches. In 1934, the Regional Church Hessen-Kassel and the Regional Church of Waldeck and Pyrmont merged. The EKKW includes the parishes of Kassel, Marburg and Hanau-Hersfeld in northern Hesse, Schmalkalden in Thuringia and reaches as far as Frankfurt am Main.