Riegersburg Castle, located at 482 metres high over a rocky outcrop Put up in the Eleventh Century and took its current look in the Seventeenth Century due to the building Works thanks to its owner in the past, Katharina Elisabeth von Galler In 1822 it. Riegersburg Castle, located at 482 metres high over a rocky outcrop Put up in the Eleventh Century and took its current look in the Seventeenth Century due to the building Works thanks to its owner in the past, Katharina Elisabeth von Galler