Illustrious Highness
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.