The Ortenburg inherited large estates in the Drava valley upon the extinction of the Lurn counts in 1135 . In 1192 Count Otto II of Ortenburg and his brother Hermann founded the settlement of Spittal below the castle . Otto II is also mentioned as a participant of the Crusade of Henry VI in 1195 . In 1276 the Ortenburgs sided with Count Meinhard II of Gorizia-Tyrol and the newly elected Habsburg king Rudolf I of Germany against the occupying forces of King Ottokar II of Bohemia . Damaged by the 1348 Friuli earthquake , however , the significance of the comital castle diminished in favour of the nearby Spittal residence
1348 Friuli earthquake
1348 Friuli earthquake
Burgruine Ortenburg