Kingdom of Kongo
The Kingdom of Kongo was a kingdom located in central Africa in northern Angola, the western part of the Democratic Republic of the Congo, the Republic of the Congo, and the southern part of Gabon. At its greatest size it reached from the Atlantic Ocean to the west, the Kwango River to the east, the Congo River to the north, and the Kwanza River to the south. The kingdom was made up of many provinces ruled by the Manikongo, the Portuguese version of the Kongo title Mwene Kongo, meaning "lord or ruler of the Kongo kingdom", but its sphere of influence reached to neighbouring kingdoms, like Ngoyo, Kakongo, Loango, Ndongo, and Matamba, the latter two located in Angola.