Returning to Iberia, Vakhtang took up a series of measures aimed at strengthening the royal authority. Resenting Persia's encroachments on his independence, Vakhtang reversed his political orientation and effected a rapprochement with the Roman government. He married Helena (Elene), "daughter" (possibly relative) of Emperor
Zeno, and received permission from
Constantinople to elevate the head of the church of Iberia, the
bishop of
Mtskheta, to the rank of
catholicos, whom he sent, together with twelve newly appointed bishops, to be consecrated at
Antioch. These rearrangements did not pass smoothly and the king had to overcome opposition, especially in the person of Mikel, the deposed bishop of Mtskheta. Javakhishvili explains this conflict on account of doctrinal differences between the
Monophysite Vakhtang and
Diophysite Mikel, a presumption supported by Toumanoff, who points out that the change of prelate and his subordination to Antioch could "only imply acceptance of Zeno's formulary of faith", i.e., the moderately Monophysite
Henotikon of 482. On his part, another Georgian historian,
Simon Janashia, argues that Vakhtang was inclined towards Diophysitism while Mikel adhered to Monophysitism. ==War with Persia==