Tags: Noble.
Berthold III Count of Andechs (c. 1110/1122 – December 14 1188) was the Margrave of Istria as Berthold I from 1173 until 1188. He was the son of Berthold II Count of Andechs Dießen Plassenberg and Stein (died 1151) and his first wife Sophie of Istria.In 1173 he became the Margrave of Istria succeeding Engelbert III who had been the last Margrave from the House of Sponheim.