attesting, or the wife or husband of that person, or any person claiming under either of them. (2) A legatee under a will shall not lose his or her legacy by attesting a codicil which confirms the will. 55. Witness not disqualified by interest or by being executor. No person, by reason of interest in, or of his or her being an executor of, a will, is disqualified as a witness to prove the execution of the will or to prove the validity or invalidity of the will. 56. Revocation of will by testator’s marriage. (1) Every will shall be revoked by the marriage of the maker, except a will made in exercise of a power of appointment, when the property over which the power of appointment is exercised would not, in default of the appointment, pass to his or her executor or administrator or to the person entitled in case of intestacy. (2) Where a person is invested with power to determine the disposition of property of which he or she is not the owner, he or she is said to have power to appoint that property. 57. Revocation of unprivileged will or codicil. No unprivileged will or codicil, nor any part thereof, shall be revoked otherwise than by marriage, or by another will or codicil or by some writing declaring an intention to revoke the unprivileged will or codicil, and executed in the manner in which an unprivileged will is in this Act required to be executed, or by the burning, tearing or otherwise destroying of the will or codicil by the testator, or by some person in his or her presence and by his or her direction, with the intention of revoking it. 58. Effect of alteration in unprivileged will. No obliteration, interlineation or other alteration made in any unprivileged will after the execution of the will shall have any effect, except so far as the words or meaning of the will have been thereby rendered illegible or undiscernible, unless the alteration is executed in like manner as is in this Act required for the execution of the will; except that the will, as so altered, shall