IV (1261 – after 1318), married Margaret (1268 – 8 December 1292), another daughter of Ulrich II of Heunburg and Agnes of Baden References Karlmann Tangl: Die Grafen von Pfannberg, in: Archiv für Kunde österreichischer Geschichts-Quellen, vol. 18, Vienna, 1857 Othmar Pickl: Geschichte des Marktes Frohnleiten, Graz, 1956 (Article about the Pfannberg family) Counts of Pfannberg 13th-century births Year of birth unknown 1282 deaths 13th-century people of the Holy Roman Empire