Berthold IV, Duke of Zähringen

Berthold IV
Duke of Zähringen
Berthold IV, relief by Franz Xaver Hauser in the choir of Freiburg Minster (1793/5)
Bornc. 1125
Died(1186-12-08)8 December 1186
Noble familyZähringen
SpousesHeilwig of Frohburg
Ida, Countess of Boulogne
IssueBerthold V
FatherConrad I, Duke of Zähringen
MotherClementia of Luxembourg-Namur

Berthold IV, Duke of Zähringen (c. 1125 – 8 December 1186) was a Duke of Zähringen and Rector of Burgundy. He was the son of Conrad I, Duke of Zähringen and Clementia of Luxembourg-Namur. He founded numerous cities, including Fribourg.