SirraD. C. Samsaris, La vallée du Bas-Strymon á l’ époque impériale (Contribution épigraphique á la topographie, l’ onomastique, l’ histoire et aux cultes de la province romaine de Macédoine), Dodona 18 (1989), fasc. 1, p. 235, n. 37 = The Packard Humanities Institute (Samsaris, Bas-Strymon 37, # PH150675) () or () was an ancient GreekAn Inventory of Archaic and Classical Poleis: An Investigation Conducted by The Copenhagen Polis Centre for the Danish National Research Foundation by Mogens Herman Hansen, 2005, page 867 polis (after the 4th century BC) located in Thrace, in the region between the river Strymon and the river Nestos. The city ethnic name was () or () and its territory was called (). Sirra was located in the territory of the Odomantes.
It was founded by Paeonians, expanded by Macedonian kings with immigrants and extended to compromise a vast territory with its Komai. Sirra had participated in a local Pentapolis and perhaps in the earlier sympoliteia. It was the northern limit along with Daneiros of the territory granted to another polis, Philippi by Philip II. Sirra's name has remained relatively unchanged since antiquity, in Serres, Serrai. Sirra was located inland.An Inventory of Archaic and Classical Poleis: An Investigation Conducted by The Copenhagen Polis Centre for the Danish National Research Foundation by Mogens Herman Hansen, 2005, page 891
The precise location and positiveAn Inventory of Archaic and Classical Poleis: An Investigation Conducted by The Copenhagen Polis Centre for the Danish National Research Foundation by Mogens Herman Hansen, 2005, page 855 of Ancient Sirra is on the Koulas hill north of the modern city with sparse remains. D. C. Samsaris, A History of Serres (in the Ancient and Roman Times) (in Greek), Thessaloniki 1999, p. 47-51 (Website of Municipality of Serres) An improbable identification of Ancient Sirra occurred in the case of ().
See also Greek colonies in Thrace
References