NAHARVALI one of the most powerful tribes of the Lygii, in the north-east of Germany. Tacitus ( Germ. 43) relates that the country inhabited by them (probably about the Vistula) contained an ancient and much revered grove, presided over by a priest in female attire. It was sacred to twin gods called Alcis, whom Tacitus identifies with Castor and Pollux. (Latham on Tac. Germ. l. c.;Sprengel, Erlaüter. zu Tac. Germ. p. 140.)
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