 This eventually backfired, and Yazdegerd I met his end at the hands of the nobility in the remote northeast.The nobles then sought to stop Yazdegerd's sons from the ascending the throne; his eldest son, Shapur IV, was quickly killed after his accession and replaced with Khosrow.Another son, Bahram V, hurried to the Sasanian capital of Ctesiphon with an Arab army and pressured the nobility to acknowledge him as shah.