Ashot was the son of the Iberian nobleman Adarnase who had founded the Bagratoni hereditary fiefdom in Tao-Klarjeti and bequeathed to his son extensive possessions acquired upon the extinction of his Guaramid and Chosroid cousins. Ashot initially failed to gain a foothold in central Iberia, his efforts being dashed by the Arab control of Tiflis. Ashot established himself in his patrimonial duchy of Klarjeti, where he restored the castle of Artanuji said to have been built by the Iberian king Vakhtang I Gorgasali in the 5th century, and received the Byzantine protection, being recognized as the presiding prince and Kouropalates of Iberia. To revive the country devastated by the Arabs and cholera epidemics, he patronized the localmonastic communities established by Grigol Khandzteli, and encouraged the settlement of the Georgians in the region. As a result, the political and religious center of Iberia was effectively transferred from central Iberia to the south-west, in Tao-Klarjeti. From his base in Tao-Klarjeti, Ashot fought to recover more Georgian lands from the Arab hold and, though not always successful, succeeded in taking much of the adjoining lands from Tao in the southwest to Shida Kartli in the northeast, including Kola, Artani, Javakheti, Samtskhe, and Trialeti. Of the former Chosroid possessions, only Kakheti to the east eluded him. With local Arab emirs in the Caucasus growing ever more independent, the Caliph recognized Ashot as the prince of Iberia in order to counter the rebellious emir of Tiflis Isma’il ibn Shu’aib c. 818. The emir had enlisted support of Ashot’s foe—the Kakhetian prince Grigol—and the Georgian highland tribes of Mtiulians and Tsanars. Ashot, joined by the Byzantine vassal king of Abkhazia, Theodosius II, met the emir on the Ksani, winning a victory and pushing the Kakhetians from central Iberian lands. The Bagrationi' fortunes reversed when Khalid b. Yazid, the Caliph's viceroy of Armīniya, moved in to reinforce the central Arab authority in the Caucasian polities in 827/8. Ashot I must have been still alive at that time, and the information provided by the 11th-century Georgian chronicler Sumbat, according to which Ashot was murdered in 826, is doubtful. It is more likely that the event took place four years later, on January 29, 830. Driven by the Arabs from central Iberia, Ashot fell back to the Nigali valley where he was assassinated by renegades at the altar of a local church. Upon Ashot's death, his holdings were allotted to his three sons: Bagrat, Adarnase, and Guaram. His daughter was married to Theodosius II of Abkhazia.
