1) Sarmatian tribe 
The Siraces or Sirakes (Sirakoi, Siraci, also Siraceni and Seraci) were a hellenized Sarmatian tribe that inhabited Sarmatia Asiatica; the coast of Achardeus at the Black Sea south of the Caucasus mountains, Siracena is mentioned by Tacitus as one of their settlements. They were said to be relatively small nation but with great moral. They were ne...