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.
County of Namur Namur (Dutch: "Namen" ) was a county of the Carolingian and later Holy Roman Empire in the Low Countries. Its territories largely correspond with the present-day Belgian arrondissement Namur plus the northwestern part of the arrondissement Dinant.