Yes,Countess Anna Amalia was from the Dietrichstein-Hollenburg branch,but it's the same family!Similar as Reuss family and its branches.For example,Auguste Reuss was only a Countess when was born,but at the time Queen Victoria was born,she was already Princess Reuss von Loebenstein-Ebersdorf in her own right!This Reuss line gained the Princely title in 1806!