Mississippi Code Title 91. Trusts and Estates § 91-29-9

(a) An interest granted in a provision of a trust instrument that is revoked under Section 91-29-7(a)(1) or (2) passes as if the former spouse of the divorced individual who executed the trust instrument and each relative of the former spouse who is not a relative of the divorced individual disclaimed the interest granted in the provision.

(b) An interest granted in a provision of a trust instrument that is revoked under Section 91-29-7(a)(3) passes as if the former spouse and each relative of the former spouse who is not a relative of the divorced individual died immediately before the dissolution of the marriage.