One of the first deployments of Sassanian grivpanvar occurred at the Battle of Edessa in 259 AD, where a powerful army of Sassanians led by the emperor Shapur I came under assault from Roman sovereign Valerian's soldiers, including the renowned and elite imperial Praetorian Guard.
Shapur I - second Sassanid King of the Second Persian Empire, generally given as reigning from 241 to 272
He was the nephew (according to Zonaras xii.24) or the cousin (according to Historia Augusta, which lists him among the Thirty Tyrants) of Odaenathus, who had taken control of the Eastern provinces after the defeat and capture of Emperor Valerian by Shapur I of the Sassanid Empire.
(By this time Saloninus's grandfather, the senior Emperor Valerian was probably already a captive of the Persian King Shapur I).
In 242, the Roman emperor Gordian III set out against the Sasanians with “a huge army and great quantity of gold,” (according to a Sasanian rock relief) and wintered in Antioch, while Shapur was busy in subduing Khwarezm and Gilan.
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Gordian III later invaded eastern Mesopotamia but faced tough resistance from the Sasanians; following this blockade Gordian died in battle and Romans chose Philip the Arab as Emperor.
If the later date is correct Uranius might have helped defend the Roman Empire against Shapur I, the Sassanid king of Persia.
Proceeding this conquest, was the rise of Ardashir’s son, Shapur I.
Shapur I | Shapur II | ''The Humiliation of Emperor Valerian by Shapur, King of Persia'' by Hans Holbein the Younger | Shapur III |
Shapur I's inscription at Naqsh-e-Rostam describes the satrapy as "extending to the Caucasus mountains and the Gate of Albania (also known as Gate of the Alans)", but for the most part it was located south of the lower course of the rivers Kura and the Aras (Araxes), bordered on the south by Atropatene, and had the Caspian Sea on its east.