Bahram's rule was brought to a sudden end. The Byzantine emperor Mauritius, to whom the fugitive Prince Chosru had fled, sent an army to his aid, with which the loyal Persians united to make war upon Bahram. The Jews paid with their lives for their adherence to the usurper. At the capture of Machuza, a town containing a large Jewish population, the Persian general Mebodes put the greater part of the Jews to death. They probably fared no better in the other cities into which Chosru's victorious army penetrated. Bahram's army was vanquished, and he himself compelled to take refuge with the Huns. Chosru II, surnamed Firuz, ascended the throne of his ancestors. This prince, who was both just and humane, resembled his grandfather Nushirvan rather than Hormisdas, his father; he did not hold the Jews to account for their participation in the revolt. Throughout his long reign (590-628), the two academies enjoyed uninterrupted prosperity. Chanan was succeeded by Mari bar Mar, who had founded an academy in Firuz-Shabur, and the president of Sora during the same period was a teacher of similar name, Mar bar Huna (609 to about 620), during whose administration the fortunes of the Jews of Palestine alternated from victory to defeat. The successors of these teachers were Chaninaï in Pumbeditha and Chananya in Sora; they lived to see the victorious advance of the Arabs and the end of the Persian rule. The last of the Sassanian kings, of whom there were ten in the short period of twelve years, had no leisure to devote to the affairs of the Jewish population of their shattered empire; the Jewish community in Babylonia continued, therefore, to exist in its ancient order, with the Prince of the Captivity at its head. During the half-century that elapsed between the re-opening of the academies under Bahram and the Arab conquest of Persia (589-640), three Resh-Galutas are mentioned by name: Kafnaï, Chaninaï, and Bostanaï. The last of these belongs to the ensuing epoch, in which, aided by favorable circumstances, he succeeded in again investing the dignity of Prince of the Captivity with substantial power.