Sarmizegetusa Regia, also Sarmisegetusa, Sarmisegethusa, Sarmisegethuza, Ζαρμιζεγεθούσα (Zarmizegethoúsa) or Ζερμιζεγεθούση (Zermizegethoúsē), was the capital and the most important military, religious and political centre of the Dacians. Erected on top of a 1,200 metre high mountain, the fortress was the core of the strategic defensive system in the Orăştie Mountains (in present-day Romania), comprising six citadels. Sarmizegetusa Regia was the capital of Dacia prior to the wars with the Roman Empire.