Shapur I's inscription at the Ka'ba-ye Zartosht

Shapur I's Ka'ba-ye Zartosht inscription (shortened as Shapur-KZ, ŠKZ,[1] SKZ[2]), also referred to as The Great Inscription of Shapur I,[2][3] and Res Gestae Divi Saporis (RGDS),[2][1] is a trilingual inscription made during the reign of the Sasanian king Shapur I (r. 240–270) after his victories over the Romans.[1] The inscription is carved on the Ka'ba-ye Zartosht, a stone quadrangular and stepped structure located in Naqsh-e Rustam, an ancient necropolis located northwest of Persepolis, in today's Fars Province, Iran.[1] The inscription dates to c. 262.[2]

Ka'ba-ye Zartosht
The inscriptions