It originally served not as a residential but as an fortified complex of the Lords of Kornberg to the hungarian border.
In 1328 the Walseer gave Kornberg as an Afterlehen to the Lords von Graben.
Later Kornberg came into their possession as an Allod and served as the administrative headquarter of the styrian branch of the family.
[2] After the death of Andrä von Graben in 1556 and the extinction of this line,[3] the castle fall after many years of inheritance disputes to the sons of Andrä's sister Anna von Graben, the Lords and Counts von Stadl zu Kornberg as a Fideicommiss.
Afterwards they sold it to the House of Liechtenstein, and in 1871 the family of Charles Francois Bardeau become the new owners.