Civil Code (Cap. 16), article 598

598. (1) Those who have not completed the eighteenth year of their age cannot make by will other than remuneratory dispositi ons. (2) Nevertheless, where any such disposition, regard being had to the means of the testator and to the services in reward of w hich it is made, is found to exceed a r easonable amount, it may be redu ced by the court to such amount. Wills made by persons subject to incapacity are null even though incapacity ceases before testator’s death.