Hormizd I Kushanshah was Kushanshah of the Kushano-Sasanian Kingdom from 275 to 300. His reign was marked by his rebellion against his brother and suzerain the Sasanian King of Kings Bahram II.
Coin of Hormizd I Kushanshah, Marw mint
The victory of Bahram II (left) over Hormizd I Kushanshah (right) is depicted in the bottom panel at Naqsh-e Rustam (the top panel is the "victory" of Bahram II over Roman Emperor Carus).
Gold coin of Hormizd I Kushanshah, imitating the Kushan coins, with the deity Oesho on the reverse.
The Kushano-Sasanian Kingdom was a polity established by the Sasanian Empire in Bactria during the 3rd and 4th centuries. The Sasanian Empire captured the provinces of Sogdia, Bactria and Gandhara from the declining Kushan Empire following a series of wars in 225 CE. The local Sasanian governors then went on to take the title of Kushanshah or "King of the Kushans", and to mint coins. They are sometimes considered as forming a "sub-kingdom" inside the Sasanian Empire.
Portrait of Kushano-Sasanian ruler Hormizd I Kushanshah (c. 277-286 CE) in Kushan style.
Coin of the last Kushano-Sasanian ruler Bahram Kushanshah (circa 350-365 CE) in Kushan style. Obv: Bahram with characteristic headdress. Rev: Shiva with Nandi in Kushan style.
Kushano-Sasanian ruler Ardashir I Kushanshah, circa 230-250 CE. Merv mint.
Ardashir I Kushanshah in the name of Kushan ruler Vasudeva I, circa 230-245 CE.