Background
Herman III was a son of Herman II (d 1247) and his wife, Beatrix of Andechs-Merania (d 1265).
Herman III was a son of Herman II (d 1247) and his wife, Beatrix of Andechs-Merania (d 1265).
They resided at the Plassenburg. In 1278, Hermann and Otto divided their inheritace. Otto III took the County of Weimar and the Plassenburg.
Hermann III took the County of Orlamünde.
Hermann III died of the plague in 1283.