The Shapur III of Persia reference article from the English Wikipedia on 24-Apr-2004
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Shapur III of Persia

Shapur III was king of Persia from 383 to 388. Son of Shapur II, he was elevated to the throne by the magnates against his uncle, Ardashir II, and killed by them after a reign of five years. He concluded a treaty with Theodosius the Great.

This entry was originally from the 1911 Encyclopedia Britannica.