Free Republic of the Congo
The Free Republic of the Congo (French: République Libre du Congo), often referred to as Congo-Stanleyville, was a short-lived rival government to the Republic of the Congo (Congo-Léopoldville) based in the eastern Congo and led by Antoine Gizenga. Following Prime Minister Patrice Lumumba's deposition in September 1960 in the midst of the Congo Crisis, many of his supporters became disillusioned with the government in Léopoldville (modern-day Kinshasa).
Source: Wikipedia — Free Republic of the Congo (CC BY-SA 4.0)