The Michelsburg Castle and the neighboring former provost church of St. Remigius on the Remigiusberg near Haschbach, in the center of the Glan Valley, are the historical heart of the Remigiusland region.
In 1127, an illegally built hilltop castle was documented when Benedictine monks purchased it from a knight named Adelbert.
The monks used the stones of the former castle to build the Benedictine provost church of St. Remigi, a branch monastery of the Abbey of St. Remy near Reims.
The remnant of this provost church is the Remigius Church.