Complex sentence: Yazdegerd II ("made by God, " in Greek accounts,"Isdigerdēs"), fifteenth Sassanid King of Persia, was the son of Bahram V (421--438) and reigned from 438 to 457.
Split into simpler sentences: Yazdegerd II ("made by God, " in Greek accounts,"Isdigerdēs") was the fifteenth Sassanid King of Persia. He was the son of Bahram V (421--438) and reigned from 438 to 457.