What is the name of the historical county, later duchy of the Holy Roman Empire, located in the Low Countries that  Adolf van Nieuwenaar worked for in the  Eighty Years' War?
Guelders Guelders or Gueldres (Dutch: "Gelre" , German: "Geldern" ) is a historical county, later duchy of the Holy Roman Empire, located in the Low Countries.
Westerburg-Leiningen-Leiningen Leiningen-Westerburg was an historic state of the Holy Roman Empire, located in the vicinity of Leiningen and Westerburg in what is now the German state of Rhineland-Palatinate.