His successor , Kumwimbe Ngombe , had to fight several campaigns to recover the eastern territories .
The Hemba fire kingdom cut its links to the Luba empire after Ilunga Sungu died .
Ilunga Sungu 's successor , Kumwimbe Ngombe , had to fight several campaigns to recover the eastern territories .
The Hemba fire kingdom cut its links to the Luba empire after Ilunga Sungu died .