Also known as:nonmarital children · non-marital child · nonmarital child · non marital children · illegitimate children · children born out of wedlock
Written by attorneys · grounded in primary & secondary sources — see below
Children born to parents who are not married to each other at the time of the child's birth. Their legal status receives constitutional protection against punitive classifications in inheritance and support, and due process safeguards attach when an unmarried father has formed a family unit with the child.
Sources & Authorities
How it applies
Common Examples
6
Unmarried Father Seeks Custody Hearing
Nancy Nelson and her partner raised their daughter together in a shared home for five years. After Nancy died in an accident, state officials removed the child from the father's care without any hearing on his fitness. The father's established family relationship with his non-marital child entitled him to notice and an opportunity to be heard before the state could sever the parental tie.
Class Gift Includes Genetic Nonmarital Child
Nicole Navarro created a trust leaving her estate to her 'children.' Her genetic daughter born outside marriage had lived with Nicole for years and received daily care from her. The daughter qualified as a member of the class because the gift was created by the genetic parent and no contrary intent appeared in the instrument.
Select any source to read its text and confirm it supports the definition.
Cases
Restatements
Casebooks
Study Supplements
Six-Year Limit on Paternity Action Struck Down
Natasha Nielsen filed a support action on behalf of her non-marital son six years after birth. State law barred such claims after six years while allowing marital children to seek support indefinitely. The limitation failed intermediate scrutiny because the state offered no evidence that the cutoff actually prevented stale or fraudulent claims.
Lifetime Paternity Proof Required for Inheritance
Norman Nash died intestate. His non-marital daughter sought a share of the estate but had never obtained a court adjudication of paternity during his life. The state statute conditioning inheritance on lifetime establishment of paternity was upheld because it substantially advanced the interest in orderly estate administration and fraud prevention.
Absolute Bar on Paternal Inheritance Invalidated
Nalini Narula's non-marital son claimed an intestate share from his father's estate. State law categorically excluded all non-marital children from inheriting from fathers. The total bar violated equal protection because it penalized the child for the parents' marital status without a substantial relation to any important state interest.
Biological Father Lacks Protected Interest
A man claiming to be the biological father of a child born to a married woman sought to block the child's adoption by the mother's husband. He had never established a personal or legal relationship with the child. Because he had not grasped the opportunity to form a parental bond, he possessed no due process right to notice or consent.
Michael H. v. Gerald D.491 U.S. 110 (1989)
Common questions
Frequently Asked
5
What level of scrutiny applies to laws distinguishing between marital and non-marital children?+
Classifications based on a child's non-marital status receive intermediate scrutiny. The state must demonstrate that the classification is substantially related to an important governmental objective.
Supporting sources
May a state require lifetime adjudication of paternity before a non-marital child may inherit from an intestate father?+
Yes. A requirement that paternity be established during the father's lifetime is substantially related to the important interest in orderly and fraud-free administration of estates.
Supporting sources
Does an unmarried father who has formed a family unit with his non-marital child receive due process protection before the state may remove the child?+
Yes. Due process requires notice and an opportunity to be heard before the state may sever the relationship when the father has participated in raising the child.
Supporting sources
How does the Restatement treat a non-marital child in a class gift created by the genetic parent?+
The non-marital child is presumptively included in the class unless the instrument or circumstances show a contrary intent by the transferor.
Supporting sources
Does an absolute statutory bar on paternal inheritance by non-marital children violate equal protection?+
Yes. A total exclusion that punishes children for their parents' marital choices is not substantially related to any important governmental interest.
Supporting sources
430 U.S. 762 (1977)Family Law
…of Justice Powell At issue in this case is the constitutionality of § 12 of the Illinois Probate Act[^maj-1] which allows illegitimate children to inherit by intestate succession only from their mothers. Under Illinois law, legitimate children are allowed to inherit by intestate succession from both their mothers and their…