General Notes

Latin SAPOR, Arabic SABUR, Persian king of the Sasanian dynasty who consolidated and expanded the empire founded by his father, Ardashir I.

Shapur continued his father's wars with Rome, conquering Nisibis (modern Nusaybin, Tur.) and Carrhae (Harran, Tur.) and advancing deep into Syria. Defeated at Resaina (now in Turkey) in 243, he was able, nevertheless, to conclude a favourable peace in 244. In 256 he took advantage of the internal chaos within the Roman Empire and invaded Syria, Anatolia, and Armenia; he sacked Antioch but was
repulsed by the emperor Valerian. In 260, however, Shapur not only defeated Valerian at Edessa (modern Urfa, Tur.) but captured him and kept him a prisoner for the rest of his life. The capture of Valerian was a favourite subject of Sasanian rock carvings.

Shapur does not appear to have aimed at a permanent occupation of the eastern Roman provinces; he merely carried off enormous booty both in treasure and in men. The captives from Antioch were forced to build the city of Gondeshapur, later famous as a centre of learning. Using the same captives, who excelled the Persians in technical skill, he built the dam at Shushtar known from that time as the Band-e
Qeysar, Dam of Caesar.

Shapur, no longer content to describe himself as "king of kings of Iran," as his father had done, styled himself "king of kings of Iran and non-Iran"--that is, of non-Persian territories as well. He appears to have tried to find a religion suitable for all of the empire, showing marked favour to Mani, the founder of Manichaeism. Inscriptions show that he also founded Zoroastrian fire temples and sought to broaden the base of the newly revived Zoroastrian religion by the addition of material derived from both Greek and Indian sources.
Source: www.eb.com