sentences:  Instead, Vakhtang installed Archil as king of Kakheti in 1664.To gain the shah's consent, Archil was prevailed upon, much against his will, to become a nominal convert to Islam, assuming the title of Shah-Nazar-Khan.In 1664, Archil defeated an attempt by the rival Kakhetian prince and his brother-in-law, Erekle, to regain his father's crown, and achieved a degree of stability and prosperity in Kakheti.