Can a Marriage Be Annulled After One Spouse Dies?
The short answer: sometimes. Death ends a marriage, but it does not always end the question of whether the marriage was valid. Courts in New Jersey, New York, and Connecticut will declare a marriage a nullity after one spouse has died when the marriage was “void,” meaning it was never legally a marriage at all, and the clearest modern example is a marriage entered by a person who lacked the mental capacity to consent. A marriage that was merely “voidable,” such as one induced by fraud or duress, generally can be attacked only while both spouses are alive. The distinction decides whether a late-in-life marriage to a person with dementia gives the new spouse an inheritance, an elective share, and control of the estate, or nothing.
This article explains the void-voidable line, what each of those states allows after death, the leading cases on so-called predatory marriage, and what families can do before and after a questionable wedding.
Takeaways:
- Death ends a marriage, but a void marriage, including one entered without mental capacity, can be declared a nullity afterward by the estate or family
- New Jersey’s nullity statute allows a posthumous challenge for lack of capacity but expressly bars one for a marriage within prohibited degrees of kinship that was not annulled during life
- New York permits a relative to sue to annul a marriage for want of understanding after the incapacitated spouse’s death, and its courts have denied an elective share to a spouse who married an incapacitated person
- Connecticut bars anyone who marries a person under conservatorship without the conservator’s consent from acquiring property rights through the marriage
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Why Does It Matter Whether a Marriage Was Valid?
Marriage confers rights that survive death. A surviving spouse takes a large share of an estate with no will, may claim an elective share against a will that leaves them out, is exempt from New Jersey inheritance tax, receives Social Security survivor benefits, and in New York stands second on the list of who makes medical decisions. Our article on what a surviving spouse is entitled to sets out the figures. When a caregiver, a much younger companion, or a recent acquaintance marries a person who is ill, isolated, or cognitively impaired shortly before death, the children and other heirs lose those rights to the new spouse. The label courts have adopted for this pattern is predatory marriage, and the legal question it raises is whether the marriage was ever valid.
What Is the Difference Between a Void and a Voidable Marriage?
A void marriage is one the law refuses to recognize from the outset. Classic examples are a bigamous marriage, where one party was already married to someone living, and an incestuous marriage within prohibited degrees. In most states a marriage entered by a person incapable of understanding what marriage is falls into the same category, on the theory that there was never any consent. Because a void marriage is treated as never having existed, a court can say so at any time, including after a party has died, and third parties whose rights depend on the answer, such as children and estates, can ask.
A voidable marriage is valid until a court annuls it. Fraud, duress, an underage party, or impotence make a marriage voidable. The right to annul belongs to the injured spouse, can be lost by continuing to live together after learning the truth, and generally ends at death, because the marriage was a real one until a court said otherwise and death has already ended it.
The line is drawn by statute in each state, and the statutes are not identical.
What Does New Jersey Law Allow?
New Jersey’s grounds for a judgment of nullity are in N.J.S.A. 2A:34-1. They include bigamy; marriage within the prohibited degrees; incurable impotence unknown to the other party; lack of capacity to marry “due to want of understanding because of mental condition, or the influence of intoxicants, drugs, or similar agents,” or lack of mutual assent, duress, or fraud as to the essentials of marriage, where the marriage was not later ratified; marriage under age 18; and any ground “allowable under the general equity jurisdiction of the Superior Court.”
The statute speaks to the after-death question in one place only, and by negative implication elsewhere. For marriages within the prohibited degrees, it provides that “if any such marriage shall not have been annulled during the lifetime of the parties the validity thereof shall not be inquired into after the death of either party.” No similar bar applies to the other grounds.
The leading New Jersey decision is In re Estate of Santolino, decided by the Chancery Division, Probate Part, in 2005. An 81-year-old man hospitalized with lung cancer married his companion between hospital stays, weeks before he died, while heavily medicated and on oxygen. His sister challenged the marriage after his death when the widow sought to administer the estate. The widow argued that death had ended the marriage and made it immune from attack. The court disagreed as to capacity. It held that under New Jersey’s statute and the common law, inability to consent renders a marriage void, and “a void marriage is deemed not to have been a marriage at all,” so the court could render “a posthumous judgment of nullity.” The court reached a different conclusion on the impotence ground, which it treated as personal to the spouses and not available after death. Santolino is a trial-level decision, and how the Appellate Division would resolve every aspect of a posthumous challenge remains open, but it has guided New Jersey practice for two decades.
What Does New York Law Allow?
New York divides marriages into void and voidable by statute. Domestic Relations Law section 7 lists the voidable grounds: a party under 18; a party “incapable of consenting to a marriage for want of understanding”; a party physically incapable of entering the married state; consent obtained “by force, duress or fraud”; and five years of incurable mental illness. Bigamous and incestuous marriages are void under separate sections.
Although New York classifies want of understanding as a voidable ground, Domestic Relations Law section 140(c) expressly allows the challenge to survive the incapacitated spouse. An action to annul a marriage on that ground may be brought by “any relative of a person with a mental illness who has an interest to avoid the marriage,” and it may be maintained “after the death of the person with a mental illness in that condition, and during the life of the other party to the marriage.” A child or sibling of the deceased may therefore sue the surviving spouse to annul the marriage, so long as that spouse is alive.
New York’s courts have gone further where a formal annulment was not available. In Campbell v. Thomas, decided by the Appellate Division, Second Department, in 2010, a 72-year-old man with severe dementia was married by his caregiver while his daughter, his usual caregiver, was away for a week. The caregiver concealed the marriage and, after his death about a year later, claimed the elective share. The court found the marriage void for want of understanding and held that, even though the elective share statute contains no exception for such a case, courts may “exercise their powers of equity” to prevent a person from profiting by marrying an incapacitated person to obtain a share of the estate. The surviving spouse was denied the elective share. The Estates, Powers and Trusts Law also disqualifies a surviving spouse where the marriage was void, under EPTL 5-1.2.
What Does Connecticut Law Allow?
Connecticut General Statutes section 46b-40 states the basic rule that “a marriage is dissolved only by (1) the death of one of the parties or (2) a decree of annulment or dissolution,” and that “an annulment shall be granted if the marriage is void or voidable under the laws of this state or of the state in which the marriage was performed.” Marriages within the prohibited degrees are void under section 46b-21. Connecticut’s statutes do not spell out who may seek annulment after death, and the question turns on the void-voidable distinction developed in case law, as in New Jersey.
Connecticut does have a provision the other two states lack. Under section 46b-29, no marriage license may issue to a person under conservatorship without the conservator’s written, acknowledged consent, and “any person married without the consent provided for in subsection (a) of this section shall acquire no rights by such marriage in the property of any person who was under such control or supervision at the time of the marriage.” For a Connecticut family that has already obtained a conservatorship over a vulnerable relative, that section forecloses the inheritance consequences of a predatory marriage without the need to prove incapacity after the fact.
What Happened in the Nebraska Case?
The case that prompted the earlier version of this article remains a clear illustration. In Malousek v. Meyer, decided by the Nebraska Supreme Court on July 30, 2021, a woman who had lived with her partner for years and had said she never intended to marry him was married to him weeks before she died of cancer, while isolated from her children and, the trial court found, incoherent. In the same period she added him to bank accounts, changed beneficiary designations to him and his son, and signed deeds of her houses to him. Her children sued after her death. The trial court found she lacked mental capacity to marry and was unduly influenced, declared the marriage null and void, and ordered the property transfers undone, and the Supreme Court affirmed those findings. The case is not binding in New Jersey, New York, or Connecticut, but its facts are the facts these cases almost always present: a rapid marriage, isolation from family, and a cluster of asset transfers in the final weeks.
Are You Still Married After Your Spouse Dies?
No, in the legal sense. Marriage ends at death, and the survivor is a widow or widower, free to remarry, and treated as unmarried for most purposes going forward. What survives death are the rights that flowed from the marriage while it existed: inheritance, elective share, survivor benefits, and the ability to challenge or defend the marriage’s validity. A posthumous annulment does not “un-marry” the couple in any practical sense. It declares that the legal relationship never arose, so that the survivor never acquired those rights.
What Can a Family Do?
Before a questionable marriage:
- Document capacity, or the lack of it. Contemporaneous medical evaluations are the evidence these cases turn on. A diagnosis of dementia is not by itself proof of incapacity to marry, which requires only an understanding of the nature of marriage, so specific findings matter.
- Consider guardianship or conservatorship. A New Jersey or New York guardianship judgment can address the right to marry, and a Connecticut conservatorship triggers the consent requirement of section 46b-29. These are serious steps, but they are the surest protection against a marriage-based transfer of the estate.
- Use a trust. Assets in an irrevocable trust, or a revocable trust with independent trustees, are harder for a new spouse to reach than assets in the person’s name, though the elective share statutes in New Jersey and New York pull revocable trusts back in.
- Stay present. Isolation from family is the common thread in every reported case.
After the marriage or the death:
- Act quickly. New York’s section 140(c) requires the surviving spouse to be alive. Elective share deadlines run from the appointment of an executor. Evidence of the decedent’s condition is easiest to gather early.
- Challenge the transfers as well as the marriage. Beneficiary changes, joint accounts, and deeds signed in the same weeks are attacked on the same grounds of incapacity and undue influence, and the Nebraska court set them aside together.
- Object in the probate proceeding. The validity of the marriage is typically raised when the surviving spouse seeks letters, claims an intestate share, or files an elective share election, and the Surrogate or Probate Part can hear it there.
Our article on whether someone with dementia can sign legal documents addresses the related capacity questions for wills and deeds.
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The best defense against a predatory marriage is a plan made while the person is well, with trusts, fiduciaries, and family involvement that leave little for a newcomer to take. At Milvidskiy Law Group, we help families protect vulnerable relatives before a crisis and respond when a late-life marriage threatens an estate. Learn more about our estate planning services.
Milvidskiy Law Group did not represent any party in the cases described in this article, which are drawn from published court opinions. This article is for general informational purposes only and does not constitute legal advice. Reading it does not create an attorney-client relationship. Whether a marriage may be challenged after death depends on the ground asserted, the state, and the facts, and the law in this area continues to develop. The statutes and cases described were verified in September 2026 and should be confirmed before relying on them.
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