The extent to which customary law restricts the freedom of testamentary power (if at all) has given rise to a spate of cases right up to the Supreme Court, in which the courts have attempted to interpret and apply section 3(1) of the Wills Law (1958) of Western Nigeria, which currently applies to Lagos, Ogun, Osun, Ondo, Edo and Delta States. Section 3(1) of the Wills Law of all these States provides thus:

“Subject to any Customary Law relating thereto, it shall be lawful for every person to devise, bequeath or dispose of, by his will executed in a manner hereinafter required, all real and all personal estate which he shall be entided to, either in Law or in equity, at the time of his death and which if not so devised, bequeathed and disposed of would devolve upon the heir at law of him, or if he became entided by descent, of his ancestor, or upon his executor or administrator”.