According to Armenian tradition Anak murdered king Khosrov [father of Trdat] in the second half of the third century. After he had himself been killed in revenge, one of his sons was taken back to Persia; the other, Gregory [the future 'Illuminator' of Armenia], was taken to Greek territory. 1
-------------------------------------
[In] the seventeenth year of the reign of Trdat, St. Grigor came to the throne of the patriarchate of Armenia and served it for 30 years. And in the 47th year of the dominion of Trdat, he prepared and arranged Ṙstakēs, the younger son of Grigor, and sent him to the city of Caesarea for consecration as patriarch of this country of Armenia; who served the throne of the patriarchate 7 years. 2
-------------------------------------
Now during the reign of Trdat, son of Xosrov, [the land of Armenia] was illuminated with agreeable affection and pious faith by Gregory the great priest, son of Anak. [Gregory's] younger son Aristakes was a co-bishop with his father during the entire course of [Gregory's] doctrinal [teachings], every day of his life, until the day that Christ called him to his rest. Dwelling places and worthy tombs were prepared for them — for the great Gregory in the village called T'ordan in Daranaghik' district; and the blessed Aristakes his son, after the acknowledgement of his death, was taken from Cop'k' district and buried in the T'il awan in the district of Ekegheac' on the property of his father Gregory.
After this, Xosrov Kotak ruled [A.D. 330-339], grandson of Xosrov, and son of the brave and virtuous king Trdat [III, the Great, 303-330]. In [Xosrov's] day Gregory's senior son Vrt'anes came and became the chief priest [sitting] on the throne of his father, in place of his father and brother. During the years of their [tenure in the land of Armenia] there grew and multiplied peace and cultivation, population, health, fertility, abundance of goods, profitability, great divine worship and good, God-pleasing behavior. The blessed Vrt'anes illuminated and led [the Armenians] as had his father and his brother. Law and justice flourished in that age. 3
Research Notes: