Countess Louise Juliane of Erbach was born in 1603 as the daughter of Count George III and his wife, Maria of Barby-Mühlingen.
During the Thirty Years' War, Ernest served in the army and Louise Juliane led the county's government.
In his will, he left the county to his son Louis and made Louise Juliane his guardian and regent while he was still underage.
Louis Albert, one of her late husband's half-brothers, forced her to transfer the county to him and his two brothers, disregarding Ernest's will.
Hachenburg had to surrender when the food ran out and Louise Juliane and her daughters fled to Freusburg.
When the Electorate of Trier prepared to besiege Freusburg, she fled to Friedewald, where she found safety.
It was held by the Counts of Manderscheid for several generations, then inherited by the Burgraves of Kirchberg and in 1799 by Nassau-Weilburg.