Segontium
Segontium a city in the NW. part of Britannia Secunda, whence there was a road to Deva. (Itin. Ant. p. 482.) It is the modern Caernarvon, the little river by which is still called Sejont. (Camden, p. 798.) It is called Seguntio by the Geogr. Rav. (5.31).
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.