III. Surannaziun
1 Il plant da nunvalaivladad surannescha 1 onn suenter il di che l’accusader ha survegnì enconuschientscha da la disposiziun e dal motiv da nunvalaivladad ed en mintga cas 10 onns suenter il di che la disposiziun è vegnida averta.
2 Sch’il testader n’è betg abel da disponer u en cas d’illegalitad u d’immoralitad surannescha il plant da nunvalaivladad envers in legatari da mala fai sut tut las circumstanzas pir suenter 30 onns.
3 La nunvalaivladad d’ina disposiziun po vegnir fatga valair da tut temp sin via d’objecziun.
III. Prescription
1 The right to bring an action of declaration of invalidity prescribes one year after the contesting party learned of the will and the ground for nullity and in any event a maximum of ten years after the commencement of probate proceedings.
2 In all cases, the right to bring an action on grounds of lack of testamentary capacity, immorality or unlawfulness against a beneficiary acting in bad faith does not prescribe until 30 years have elapsed.
3 Invalidity may be invoked as a defence at any time.