The kingdom or polity of Vungu or Bungu was a historic state located in Mayombe (between the present-day Republic of Congo and the present-day Democratic Republic of Congo).
[1][2] In the 13th century it led a confederation of itself, Ngoyo, and Kakongo.
It neighboured the confederations of Mpemba and Seven Kingdoms of Kongo dia Nlaza.
[4] Traditions collected in the Kongo court and written up by the Jesuit priest Mateus Cardoso in 1624 cite "Bungu" as the place where the first king of Kongo ruled before crossing the Congo River to conquer Kongo.
[5] That same year, King Pedro II of Kongo mentioned that the place had been overrun and destroyed by Jagas, the generic term in documents of the period for rootless militant bands reputed to be cannibals [citation needed].