John II Komnenos
The third hypothesis, supported by Paul Gautier and Mihail-Dimitri Sturdza, states that Kata's husband was Alexios Komnenos, the eldest son of the Byzantine emperor John II Komnenos. The Byzantine chronicle of Joannes Zonaras mentions the arrival of the Georgian (Abasgian) bride of the elder son of John II at Constantinople immediately after his accession to the throne, not long after 1118.