Parsumash

Parsumash was an ancient region in southwestern Iran, roughly corresponding to the modern Fārs region. It was named after the Parsua tribe, who settled there in the 7th century BC. Achaemenes, the ancestor of the Persian Achaemenid dynasty, likely ruled Parsumash as a vassal state of Media. His descendants, including Cyrus the Great and Darius I, established the Achaemenian Empire, with capitals at Pasargadae and Parsa (Persepolis). After the empire's fall, Parsumash maintained its distinct culture and language, eventually giving rise to the Sāsānian empire in the 3rd century AD.12