Theodorus, or Thoros, after a stormy reign, died in 1170.
Thomas, son of the sister of Thoros.
Milo, brother of Thoros. Under this reign the power of the Knights Templars was formidable. They had acquired large possessions in Armenia; and their numerous preceptories were in fact fortified castles, from which they defied the power of their suzerain. Milo waged war with the Templars, and succeeded in banishing many of their followers from his dominions. He died in 1180.
Rupinus was made prisoner by Bohemond, Prince of Antioch. He died in 1189.
Leo I., or Livon, concluded a treaty, by which he freed Armenia from the tribute which it had paid to the Prince of Antioch, instead of which he voluntarily paid homage to the Pope Celestinus III. He lived in perpetual war with the formidable body of Knights Templars, with various success, and died in 1219.
Isabel, daughter of Leo. In the reign of this princess the kingdom of Armenia became tributary to the Turkish Sultans of Iconium.
Aiton, or Otho, sent embassadors to St. Louis, King of France, in the island of Cyprus. He made a visit to Mangou, Khan of Tartary, whom he converted to Christianity, and in alliance with whom, assisted by his brother, Houlagou Khan, he made war against the Mohammedans, and, having destroyed the castles of the Assassins, penetrated into the dominions of the Sultan of Aleppo, their further progress being stopped by the death of Mangou Khan, which occasioned the return of Houlagou to his own country. The Saracens or Mohammedans, on this change of affairs, in their turn overran Armenia, where they committed dreadful cruelties; and Aiton, having abdicated the crown in 1270, retired into a monastery, under the name of Macarius, where he died in the year 1272.
Leo, the son of Aiton, mounted the throne of his father in 1270, and was in constant war with Bondochar, Sultan of Egypt, who massacred 20,000 persons in Armenia. He was excommunicated for outrages committed upon the Patriarch of Antioch. After a reign of trouble and disaster, he died in 1288.
Aiton, or Otho II., the son of Leo, with many of his nation, embraced the Roman faith, and demanded the assistance of Pope Boniface VIII. against the infidels who menaced his power. No effective assistance having been afforded him, he abdicated the throne, took the habit of a Capuchin friar, and, under the name of Brother John, died in the year 1294.
Thoros, or Theodorus, despairing of success against the incursions of the neighboring nations, also became a Capuchin friar. He died in 1296.