“In Oyekan v. Adele 14 W.A.C.A. 209, Verity, C.J., after defining at p. 213 the nature of estate or interest vested under Native Law and Custom in a chief, at page 214 said- “It would appear, therefore, that the estate or interest vested in the ruler in royal estates or stool land is to be distinguished on the one hand from land vested in him beneficially as absolute owner alienable by him at will, and on the other hand land vested in himself and his family beneficially and of which the Chief or head of the family is sometimes referred to as a ‘trustee’.”