The Grovii were an ancient tribe who inhabited the valley of the Minho river, present day Portugal and Galicia (Spain). The Grovii dwelt in the coast near the rivers "Avo" (the Ave river), Celadus, Nebis, Minius and the Oblivion. The Laeros and the Ulla rivers were in the north reach of these people.
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Its main god was Turiacus, unlike the nearby Castro culture tribes, whose main deity was Cosus. Pomponius Mela stated that all the populi were Celtic, excepting for the Grovii. Pliny also rejected that the Grovii were Celtic, he considered them to have a Greek origin. They cooperated with the local Gallaeci tribes as seen in the aftermath of Viriatus' death. These with the Callacian tribes and following Celtic ways, with their women, wanted revenge from the death of Viriatus. They attacked the Roman settlements in Lusitania, gaining momentum with the support of other tribes along the way, reaching the south of the Peninsula, near modern Andalusia. Endangering Roman rule in large stretches of Hispania. The leading Gallaeci cities of Avobriga and Lambriaca were located near the Grovii lands.
- Don José de Santiago y Gómez (1896). Historia de Vigo y Su comarca. Imprenta y Lotografía Del Asilo De Huérfanos Del Sagrado Corázon de Jesús.