The successor of a king was enthroned following a well-known ritual.
After the death of the king, while the ritualistic staff ‘Biru’ took care of the body, all the personnel of the crown and the princes, came to Mwihangarizo, where mourning was observed for three months until the enthronement of the new monarch. The place was the departure point of the investiture procession.
The ambience was very festive, enhanced by the spectacular drumming of Gishora, praise-poetry, and exhibition of different dances. It was a very important day in which all kings participated in some pre-ordained rites including planting sacred, venerated trees and groves, the living symbol of the permanence and sustainability of the Burundian monarchy and its sacredness
The sacred groves of Ntare Rugamba, Mwezi Gisabo, Mutaga Mbikije, Mwambutsa Bangiricenge, and the last of the kings of Burundi Ntare Ndizeye are still remarkable sights to view on top of Mount Rubumba.