Istropolis
Istropolis, ISTRIOPOLIS, HISTRIOPOLIS (Ἰστρόπολις, Ἰστρία πόλις, or simply. Ἴστπος· Istere), a town of Lower Moesia, at the southern extremity of lake Halmyris, on the coast of the Euxine. It was a colony of Miletus, and, at least in Strabo's time, a small town. (Strab. vii. p.319; Plin. Nat. 4.18. 24;, Mela, 2.2; Eutrop. 6.8; Hdt. 2.33; Arrian, Perip. Eux. p. 24; Geog. Rav.5.1.6; Lycoph. 74; Ptol. 3.10.8; Scymn. Fragm. 22; Steph. B. sub voce Amm. Marc. 22.8; Hieroel. p. 637.) But the frequent mention of the place shows that it must have been a commercial town of some importance; of its history, however, nothing is known. Some modern writers have identified it with Kiusntenza or Kostendsje, the ancient Constantiana, which, however, was in all probability situated to the south of Istropolis.
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.