Siegfried III, Count of Weimar-Orlamünde
Siegfried III, Count of Weimar-Orlamünde was a member of the House of Ascania and a ruling Count of Weimar-Orlamünde.
He was the son of Count Herman I and his wife Irmgard.
He was regarded as a supporter of the House of Hohenstaufen. He spent some time in Denmark. He married Sophie, a daughter of King Valdemar I of Denmark and had two sons:
