During the century from 1760 to 1860 the territory of the present southern Katanga, eastern Angola and north-eastern Rhodesia lay to a great extent under the suzerainty of two powerful monarchs, Mwata Yamvo in the west and Kazembe in the east. Their common border was the Lualaba river. Both were Lunda by tribe: Mwata Yamvo was the senior in that it was from the cap...