 The Castle Wallenfels, built by the Landgrave in 1320, was apparently surrendered in battle and came securely into Nassau’s possession (though later it had to be held “open” to the Landgrave).The Landgrave thus lost important bases in the disputed territory and so in 1326 built the new Hessenwald Castle, near the present site of Roth at the Heligenberg, strategically advantageously located on the remaining possessions of the Lords of Bicken, and likewise protecting the Breidenbacher area.One of the major battles, lost by Hesse, took place in 1327 in Seibertshausen (a village on the Gladenbach Uplands, later abandoned and eventually incorporated into Weidenhausen, now part of Gladenbach).