Countess of Erbach by birth; Duchess of Saxe-Hildburghausen by marriage
Sophia Albertine, Countess of Erbach-Erbach, was Countess of Erbach-Erbach by birth and by marriage Duchess of Saxe-Hildburghausen. From 1724 to 1728, she was Regent of Saxe-Hildburghausen. Wikipedia