While more recent scholarship dismissed these earlier claims, in the 1960 a number of scholars proposed that oral traditions of the Lunda Empire, when compared with those of some Angolan groups, suggested that the Jaga invasion of Kongo and the Jagas of Angola were in fact groups of conquerors fleeing from Lunda in the 16th century.
[1][2]: 32–33 The Portuguese first learned about a people they called "jagas" during Kongo's 1556 war with the Mbundu kingdom of Ndongo.
They inhabited the middle reaches of the Kwango valley, making them the eastern neighbors to the Mbundu and BaKongo.
[4] These particular "jagas" were constant victims of the Kongo slave trade and eventually invaded their western neighbor in 1568.
This led to increased trade in favor of Portugal and a seat for priests on the Kongo electoral council.