Stephen I of Iberia
Stephen I, of the Guaramid Dynasty, was a presiding prince of Iberia from c. 590 to 627. He was killed following the Siege of Tbilisi by the invading Byzantine army.
Life
The son and successor of Guaram I of Iberia, Stephen reversed his father’s pro-Byzantine politics to pro-Sasanian and, through loyalty to his Sasanid suzerains, succeeded in reuniting Iberia under his sway. He made Tbilisi his capital and defended it with a Georgian-Sasanian force from the army of Byzantine emperor Heraclius allied with the Khazars. In 627, the Byzantine Empire and the Western Turkic Khaganate invaded Iberia placing Tbilisi under siege. The city fell in 628, and Stephen was flayed alive. His office was given to Adarnase I, his relative of the old Chosroid house.The period of Stephen's rule coincided with another crucial moment in the history of Georgia. When Stephen switched from a pro-Byzantine position to cooperation with the Sasanid Empire, his religious sympathies shifted toward anti-Chalcedonism, leading to its official adoption by the catholicos of Iberia in 598 or 599. By 608, however, the Georgian Orthodox Church returned to a Chalcedonic position, prompting the sister church of Armenia to break communion with the Georgian church and excommunicate its catholicos Kirion I. It was Heraclius’s campaign, however, that brought about the final victory of Chalcedonian faith in Iberia.