The Syriac Chronicle of the Jacobite Primate, Gregory Bar-Hebrarus (born 1226, died 1286), also identifies Unk-Khan with Prester John. “In the year of the Greeks 1514, of the Arabs 599 (A. D. 1202), when Unk-Khan, who is the Christian King John, ruled over a stock of the barbarian Hunns, called Kergt, Tschingys-Khan served him with great zeal. When John observed the superiority and serviceableness of the other, he envied him, and plotted to seize and murder him. But two sons of Unk-Khan, having heard this, told it to Tschingys; whereupon he and his comrades fled by night, and secreted themselves. Next morning Unk-Khan took possession of the Tartar tents, but found them empty. Then the party of Tschingys fell upon him, and they met by the spring called Balschunah, and the side of Tschingys won the day; and the followers of Unk-Khan were compelled to yield. They met again several times, till Unk-Khan was utterly discomfited, and was slain himself, and his wives, sons, and daughters carried into captivity. Yet we must consider that King John the Kergtajer was not cast down for nought; nay, rather, because he had turned his heart from the fear of Christ his Lord, who had exalted him, and had taken a
