Yazdegerd I, (flourished 5th century), king of the Sāsānian Empire (reigned 399-420). Yazdegerd was a highly intelligent ruler who tried to emancipate himself from the dominion of the magnates and of the Magi (a priestly caste serving a number of religions); thus, his reign is viewed differently by Christian and Magian sources. Because he stopped the persecution of the Christians, the Christian writers praise his clemency, but the sources dependent on Magian tradition refer to him as “Yazdegerd the Sinner.” He also tried to limit the power of the nobles, but their resistance finally was answered with severity. He lived in peace and friendship with the Roman Empire and was therefore praised by Byzantine authors. He appears to have been murdered in Khorāsān and was succeeded by one of his sons, Bahrām V. from geni.com: Son of Shapur III, Emperor of Sasanian Persia and Princess Tihe-He, from Kingdom of Shan-Shan (Kroraina) Scythian Princess Husband of Shoshandukt bat Mar Abba Abra Father of Bahrám V "of the Wild Ass", King of Persia; Narse / Narseh and Shahpur IV - 14th Sassanian King - r.420 (also king of Persian Armenia 415-420) Brother of Bahram IV, King of Persia and Sabuhrduxtag/Shapurduk... Queen of the SAKAS