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After a father passes away, does a secret child emerge claiming inheritance? DNA testing becomes the key!

Fujian Ciji Law Firm 2026-07-02

Inheritance is typically a family matter, but the sudden appearance of an "illegitimate child" often sparks intense legal battles. Today, let's discuss this sensitive yet very real issue.

I. Typical Cases

Old Zhang passed away due to illness, leaving behind two properties and a million in savings. Just as his three children were preparing to handle the inheritance procedures, a 25-year-old Xiao Wang suddenly appeared, claiming to be Old Zhang's child born out of wedlock and demanding his legal share of the estate. The three children were bewildered: Where did this person come from?

2. Inheritance Rights of Children Born Out of Wedlock: What Does the Law Say?

Article 1127 of the Civil Code clearly states that children born out of wedlock enjoy equal rights with children born in wedlock; no one may harm or discriminate against them. In other words, as long as Xiao Wang can prove he is indeed Old Zhang's biological son, he has the right to participate in the distribution of the estate as a first-order heir.

3. DNA Testing: How to Obtain Key Evidence?

The issue is that Old Zhang has passed away. How can a paternity test be conducted? In practice, there are several approaches:

1. Use biological samples preserved by the decedent before death (e.g., blood samples or pathology slides stored at a hospital).

2. Conduct kinship testing with close relatives of the decedent.

3. Gather indirect evidence such as the deceased's medical records and correspondence to establish a chain of evidence.

Note that if other heirs refuse to cooperate with the appraisal, the court may draw inferences based on existing evidence.

IV. Prevention Recommendations

For high-net-worth families, we strongly recommend:

- Create a valid will in advance to clearly specify how your assets should be distributed.

- Consider notarizing the will when necessary to strengthen its legal validity;

- Maintain open communication among family members to avoid disputes after your passing.

Inheritance disputes cost more than money—they hurt relationships. If you have questions, call Fujian Ciji Law Firm for professional legal support in inheritance matters.

C

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