DARKO v. BRAKO AND OTHERS Chieftaincy—Royal house—Eligibility to occupy stool—A royal's right to occupy stool indefeasible birthright—Circumstances in which right may be lost—A  committing adultery whilst chief—A pardoned and reigned till he died—Members of A's royal house continually asserting rights as royals—Whether A's descendants ineligible to ascend stool by reason of wiemtuo custom.