A French colony of this name was governed by Pierre de Brazza.
A kingdom of this name was reunified with the breakaway city-state of Soyo by Pedro IV. A polity with this name sent Alexandre Delcommune on an embassy to the Yeke state run by the slave trader Msiri. Queen Nzinga led a kingdom of this name in opposition to Portuguese colonization. Arthur Conan Doyle wrote a 1909 book to draw attention to events in a region of this name, where hands were (*) cut off by a group of askaris whose brutality was detailed in a book by Adam Hochschild - that police force here was called the Force Publique. A French colony of this name was governed by Pierre de Brazza. Roger Casement reported on abuses in a "Free State" of this name owned by Leopold II. For 10 points, identify this only region of Africa colonized by Belgium.
A kingdom of this name was reunified with the breakaway city-state of Soyo by Pedro IV.
Congo [accept Kingdom of Kongo or Congo Free State or Belgian Congo] 