sentences:  Earlier, in 1666, shah Suleiman I had succeeded Abbas II on the Iranian Safavid throne.In 1674, Suleiman I asked him to decisively end his stay in Russia, ordered him to Isfahan and promised to confirm him as king if Heraclius apostatized to Islam.The king refused to become Muslim and the shah's subject, citing the oath of allegiance given by his ancestor, Alexander II of Kakheti (r. 1574–1605), to Feodor I of Russia.