Berthold II, Count of Andechs
| Berthold II | |
|---|---|
| Count of Andechs | |
| Spouse(s) |
Sophia of Istria Kunigunde of Formbach-Pitten |
| Noble family | House of Andechs |
| Father | Count Arnold of Dießen |
| Mother | Gisela of Schweinfurt |
| Born | before 1099 |
| Died | 27 June 1151 |
Berthold II of Andechs (also known as Berthold IV, Berchtold, or Bertholf; before 1099 – 27 June 1151), a member of the House of Andechs, was a German nobleman. He was a ruling count of Dießen and Andechs in the Duchy of Bavaria, of Plassenburg and Kulmbach in Franconia, as well as bailiff of Benediktbeuern Abbey.
Berthold's descendance has not been conclusively established. According to the Europäische Stammtafeln genealogy, he was probably the elder son and heir of Count Arnold of Dießen (d. 1098) and his wife Gisela of Schweinfurt, a daughter of Duke Otto III of Swabia. He thereby was a grandson of Count Frederick II of Dießen (d. 1075).
In 1098, he inherited his father's Bavarian possessions around the Ammersee and Lake Starnberg, as well as those in Upper Franconia. Around 1120, he could succeed the comital Sigimar dynasty as bailiff (Vogt) of Benediktbeuern Abbey, and thereby increased his influence considerably. He co-founded the abbey of Dießen (where in 1130 he was documented to be bailiff) and maintained relations with Admont Abbey in the March of Styria. When his daughter Kunigunde entered Admont Abbey, he donated 15 Hufen (oxgangs) of land in Moosburg, Carinthia to the monastery.
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