Celtic tribe in Southeast Wales from the coast to the Wye, especially in the coastal plain of present-day Glamorgan. The S. resisted the Romans from AD 44, at first under Caratacus (Tac. Ann. 12,32 f.; 12,38-40; 14,29), but were finally subdued in AD 74-76 by Frontinus (Tac. Agr. 17). In the 2nd cent., possibly under Hadrian, the S. were organised as civitas Silurum with the capital of Venta Silurum (present-day Caerwent). Modest villae were built in the coastal plain. In the end, the S. came to be the most Romanised tribe in Wales.
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