The fortress located east of modern Simeonovgrad is the medieval Konstanteia. It is believed that in Late Antiquity the name of the site was Sebastoupolis.
Kamen Stanev, “Kăde e bil srednovekovnijat grad Vlisnos (Blisnos, Blizmos)?” Minalo 4/2010: 19–27.
Creators: Entry created by Ludwinski (2016-11-30)
, last updated by Ian Mladjov (2026-03-29),
with possible contributions by others.
CC BY-SA 4.0, metadata CC-0.
Persistent URI: https://vici.org/vici/29670
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Suggested citation: , L.
and Mladjov, I.,
Konstanteia. https://vici.org/vici/29670, accessed 2026-04-04.