Agnes of Schwarzburg-Blankenburg
Agnes of Schwarzburg-Blankenburg (died 13 April 1399) was a daughter of Count Gunther IX of Schwarzburg-Arnstadt and Elizabeth of Hohnstein. In 1366 she married Herman IV of Henneberg-Aschach, with a papal dispensation in 1369; their son was Frederick I. She was buried at Frauenroth Abbey.