Lewis & Short

Medobrēga (Medubrīga, Mun-dobrīga), ae, f., a city in Lusitania, now Portalegre, Auct. B. Alex. 48, 4.
Hence, Medubrīgenses, ĭum, m., the inhabitants of Medobrega, Auct. B. Alex. 48; Plin. 4, 22, 35, § 118; al. Medubricenses.
Also written ‡ MEIDVBRIGENSES, Inscr. Orell. 162.