Berthold III, Duke of Zähringen
Berthold III, Duke of Zähringen was Duke of Zähringen from 1111 until his death.
He was the son of Berthold II, the first holder of the ducal title.
Berthold III was a supporter of emperor Henry V and was significantly involved in the Concordat of... Wikipedia
Born: 1085
Died: May 3, 1122 (age 37 years), Molsheim, France
Great-grandparents: Bezelin von Villingen, Conrad II, Duke of Carinthia, and Herman IV, Duke of Swabia
Parents: Berthold II, Duke of Swabia
Partner: Sophia of Bavaria