Illustrious Highness
In 1767, "Reichsgraf" Wenzel von Clary und Aldringen, the Imperial Treasurer (and Emperor Joseph II's private council member), was raised to princely rank. Members of the family became hereditary members of the Austrian "Reichsrat" (Imperial Council). From that date, the princely title of "Fürst" (Prince) von Clary und Aldringen was borne by the head of the family, who was styled as "Durchlaucht" (Serene Highness). Junior members bore the title of "Graf" (Count) or "Gräfin" (Countess) von Clary und Aldringen and were styled as "Erlaucht" (Illustrious Highness).