Civil Code (Cap. 16), article 685

685. (1) Any testamentary disposition founded on a reason which constituted the sole inducement of the testator, and which is false, shall have no effect. (2) If the testator has stated a reason, and the indications of the w i ll are n o t s uc h a s t o sh ow t ha t su ch r ea so n w as t h e so le inducement, the testamentary disposition, even if such reason is proved to be false, shall have effect, unless it is proved that the testator was solely induced by the reason stated in the will. O F PERSONS AND T HINGS FORMING THE SUBJECT OF A D ISPOSITION Wills per relationem ad schedulam are void.