Berthold, Duke of Merania
| Berthold IV of Andechs | |
|---|---|
| Duke of Merania | |
| Born | c. 1159 | 
| Died | 12 August 1204 | 
| Buried | Dießen Abbey | 
| Noble family | Andechs | 
| Spouse(s) | Agnes of Rochlitz | 
| Father | Berthold I of Istria | 
| Mother | Hedwig of Wittelsbach | 
Berthold IV (c. 1159 – 12 August 1204), a member of the House of Andechs, was Margrave of Istria and Carniola (as Berthold II). By about 1180/82 he assumed the title of Duke of Merania, referring to the Adriatic seacoast of Kvarner which his ancestors had conquered in the 1060s and annexed to Istria and Carniola.