The Samtskhe-Saatabago or Samtskhe Atabegate, also called the Principality of Samtskhe, was a Georgian feudal principality in Zemo Kartli, ruled by an atabeg (tutor) of Georgia for nearly three and a half centuries, between 1268 and 1625. Its territory consisted of the modern-day Samtskhe-Javakheti region and the historical region of Tao-Klarjeti.