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He was a son of Prince Archil of Kakheti. Fleeing Arabs, Ioane retired in western Georgia accompanied by his mother and two sisters. Ioane died around 790 leaving no descendants.
References
Cyril Toumanoff, Les dynasties de la Caucasie chrétienne de l'Antiquité jusqu'au XIXe siècle : Tables généalogiques et chronologiques, Rome, 1990, p. 381.