Vt. Stat. Ann. tit. 15, § 516

A civil marriage may be annulled during the lifetime of the parties, or one of them, on the ground that the consent of one of the parties was obtained by force or fraud, or the threat of force, or other forms of coercion or deception on the complaint of the party whose consent was so obtained or of the parent or guardian of such party or of some relative interested to contest the validity of the marriage. When such proceedings have been commenced and the party whose consent was so obtained dies before final decree, a parent or relative interested to contest the validity of the civil marriage may enter and prosecute such complaint.