Sarmatians
People
The Sarmatians were a large confederation of ancient Iranian equestrian nomadic peoples who dominated the Pontic steppe from about the 3rd century BC to the 4th century AD.
The earliest reference to the Sarmatians is in the Avesta, Sairima-, which... Wikipedia
Languages spoken: Scythian Language
Followed by: Hunnic Empire
Geographical range: Southern Ural, Northern Caucasus, Black Sea
Period: Iron Age