An ulterior bequest of the kind contemplated by section 131 cannot take effect, unless the condition is strictly fulfilled.
     Illustrations
     (i) A legacy is bequeathed to A, with a proviso that, if he marries without the consent of B, C and D, the legacy shall go to E. E' dies. Even if A marries without the consent of B and C, the gift to E does not take effect.
     (ii) A legacy is bequeathed to A, with a proviso that, if he marries without the consent of B, the legacy shall go to C. A marries with the consent of B. He afterwards becomes a widower and marries again without the consent of B. The bequest to C does not take effect.
     (iii) A legacy is bequeathed to A, to be paid at 18, or marriage, with a proviso that, if A dies under 18 or marries without the consent of B, the legacy shall go to C. A marries under 18, without the consent of B. The bequest to C takes effect.