Of Arnsberg, and 30 m.
From 1368 the electors themselves held the county of Arnsberg as an imperial fief.
Seibertz, Landesand Rechtsgeschichte des Herzogtums Westfalen (4 vols., Arnsberg, 18 391875); R.
Copper is found principally in the Mansfeld district of the Prussian province of Saxony and near Arnsberg in the Sauerland, the ore yielding 31,713 tons in 1905, of which 5000 tons were exported.
ARNSBERG, a town of Germany, in the Prussian province of Westphalia, romantically situated on an eminence almost surrounded by the river Ruhr, 44 m.
Near the town are the ruins of the castle of the counts of Arnsberg, the last of whom, Gottfried, sold his countship, in 1368, to the archbishop of Cologne.