'a traditional state in Niger Delta. It includes the Nembe and Brass Local Government Areas'; rulers titled Amanyanabo; 'leadership is split between the Amanyanabos of Ogbolomabiri, Bassambiri, Okpoama, Odioama and Twon Brass'; 'The Nembes are an Izon people'; King Ogio about 1639; a palm-oil trading state. Accessed 2026-10-15.