Stolberg-Stolberg was a county of the Holy Roman Empire located in the southern Harz region.With the death of Count Wolf Georg zu Stolberg in 1631, Stolberg-Stolberg was inherited by members of the Rhenish line.Stolberg-Stolberg was forced to recognize the suzerainty of the Electorate of Saxony in 1738.The children of Fürsten and Erbprinzen zu Stolberg-Wernigerode bore the title of Prince[ss] (Prinz[essin]) zu Stolberg-Wernigerode and were styled Serene Highness.Other members of this line bore the title of Count[ess] (Graf/Gräfin) zu Stolberg-Wernigerode, with the style of Illustrious Highness.