The introductory phrase “subject to any customary law relating thereto” necessarily makes the power given to a testator under the subsection dependent upon the particular customary law permitting it. In effect, the power of the testator to devise his real and personal estates by Will is limited by the extent, if any, to which its exercise is permissible under the relevant customary law.
– Bello CJN. Idehen v. Idehen (1991) – SC. 271/1989