Reign and Martyrdom
Mirdat's reign of roughly two years was marked by efforts to assert the independence of Kartli against both Byzantine and Persian pressure. The tradition presents his liberation of Klarjeti and his abolition of the Persian tribute as the immediate provocations for the Persian campaign that ended his rule.
Defeated at Gardabani and taken prisoner, Mirdat refused the Persian king's demand to abandon Christianity. The accounts relate that neither intimidation nor torture broke his resolve, and that he remained firm in the faith until he died in captivity. He is honored as the first of the Georgian kings to suffer death as a martyr for Christ.