[Direct answer]In the Beijing area, children born out of wedlock enjoy the same rights as those born in wedlock. No one may harm or discriminate against them. Their parent-child relationship can be proven through five types of evidence: a birth medical certificate stating the father's information; official records such as household registration and permanent population registration forms; indirect evidence such as written materials, chat records, alimony payment receipts, and photos/videos of their cohabitation recognized by the decedent before his/her death; a paternity test report issued by a qualified institution; and a court's effective judgment confirming the parent-child relationship. If the party claiming the parent-child relationship has provided the necessary evidence and the other party has no contrary evidence but refuses to undergo a paternity test, the court may determine that the claim is established. The core basis for this is Article 1071 and Article 1127 of the Civil Code of the People's Republic of China (effective January 1, 2021) and Article 39 of the Interpretation of the Supreme People's Court on the Application of the Marriage and Family Chapter of the Civil Code of the People's Republic of China (effective January 1, 2021). If the decedent has already passed away, it is necessary to secure his/her available samples as soon as possible. For more details, please refer to the following link:Legal services for inheritance and family property division.

1. Problem background and typical scenarios

"Illegitimate child" is a colloquial term, and in legal terms, they are referred to as non-marital children. Such disputes often arise after the death of the decedent: non-marital children hold birth certificates or claim to divide the inheritance based on their mother's statement, while one of the legitimate children denies the paternity; the birth medical certificate does not list the father, and the household registration cannot reflect this; the decedent has already passed away, making it impossible to confront each other in court; and other heirs obstruct the DNA test. Some people believe that without a paternity test, it's impossible to establish paternity, while others believe that people with the same surname and living in the same village are considered related. In fact, paternity can be proven through a combination of evidence, and the DNA test is just one part of it. For more information on evidence-gathering, please refer to the following link:Legal services for inheritance and family property division.

II. Key points of contention

The disputes focus on five aspects. Firstly, the standard of proof: the claimant needs to provide sufficient evidence to establish the existence of a parent-child relationship, and the court will review whether this evidence is sufficient. Secondly, the consequences of refusing to cooperate with a paternity test: if the other party has no contrary evidence and refuses to take a paternity test, the court may determine that the claim is established and the refusing party will bear the adverse consequences. Thirdly, the probative force of indirect evidence: self-admission materials, transfer of child support payments, facts of cohabitation, and witness testimonies from informed individuals can corroborate each other to form a chain of evidence. Fourthly, sample issues: if it is impossible to collect samples directly after the decedent's death, it is necessary to rely on fixed materials such as toothbrushes, hair, and medical records preserved during the decedent's lifetime. If the materials are insufficient, the risk of the test being unable to proceed will be borne by the claimant. Fifthly, the connection with inheritance: once the parent-child relationship is confirmed, the child will participate in the inheritance on an equal footing with other children. In the judicial practice of the Beijing area, the court reviews the integrity of the chain of evidence more strictly, and unilateral statements are often insufficient.

III. Professional analysis by Henglue Lawyers

The inheritance dispute in Dongcheng District handled by Attorney Li Yonghui began with the first step of "clarifying the kinship relationships". The timeline is as follows: Zhao * died in 2009 and had his household registration cancelled; his eldest son, Zhao *, died in 2015 without being married or having children; and Guo * died in December 2022. The house in Dongcheng District in question was purchased in 2000 and registered under Zhao *'s name, which was classified as marital joint property with a judicial appraisal market value of 5.7465 million yuan. On January 28, 2013, Guo * drafted a self-written will, leaving her share to her daughter, Zhao *. The legal team comprehensively sorted out the death times, kinship relationships, and heirs of Zhao *, Guo *, and Zhao *, and determined that after Zhao *'s death, half of the house would be inherited by Guo * and her three children, while Zhao *'s inherited share would be transferred to Guo * as the sole first-order heir. Guo *'s own share and the inherited share would be handled according to the will. The disputed issues included the authenticity of the will, whether it had been revoked, and how to divide the deposit and funeral expenses. The parties' claims were as follows: Plaintiff Zhao * requested to confirm the validity of the will, obtain ownership of the house, and pay the depreciation fee; defendant Zhao * claimed that the will was false, that the plaintiff had not fulfilled her duty of support and should receive a smaller share, that all funeral expenses should be deducted, and that the 90,000 yuan deposit and 56,400 yuan rent held by the plaintiff were all part of the inheritance. The lawyer's strategy included applying for Guo *'s sister to testify about the process of forming the will; pointing out that both appraisal institutions refused to accept the handwriting appraisal due to insufficient comparison samples, and after the announcement of the appraisal, no institutions responded, so the defendant should bear the consequences of failing to provide evidence. The court's reasoning and outcome were as follows: Zhao * and Zhao * died before the implementation of the Civil Code, so the original Inheritance Law was applied; Guo * died after the implementation of the Civil Code, so the Civil Code was applied; the self-written will was confirmed to be valid, and Zhao * obtained ownership of the house in question. The case was handled by Beijing Henglu Law Firm. 李永慧律师代理的东城区继承纠纷，第一步工作恰恰是“把亲属关系弄清楚”。时间线：赵某2009年去世注销户口，长子赵某12015年去世且生前未婚、无子女，郭某某2022年12月去世；案涉东城区房屋购置于2000年，登记在赵某名下，属夫妻共同财产，司法鉴定市场价值574.65万元；2013年1月28日郭某某立自书遗嘱，将自有份额留给女儿赵某某。律师团队全面梳理赵某、郭某某、赵某1的死亡时间、亲属关系及继承人范围，确定赵某去世后房屋一半份额由郭某某与三名子女继承，赵某1所继承份额转由唯一第一顺序继承人郭某某继承，郭某某的自有份额与继承所得份额按遗嘱处理。争议焦点：遗嘱真伪、是否已被撤回、存款与丧葬费如何分割。双方主张：原告赵某某请求确认遗嘱效力、取得房屋所有权并支付折价款、分割银行存款、分担评估费16866元；被告赵某2主张遗嘱虚假、原告未尽赡养应少分、丧葬开支全额扣除、原告保管的90000元存款与56400元房租均属遗产。律师策略：申请郭某某之妹出庭作证遗嘱形成过程；针对笔迹鉴定指出，两家鉴定机构均因比对样本不充分未予受理，公告征询后无机构应询，被告应承担举证不能后果。法院说理与结果：赵某、赵某1在民法典施行前死亡适用原《继承法》，郭某某在民法典施行后死亡适用《民法典》；确认自书遗嘱有效，赵某某取得案涉房屋所有权。本案由北京恒略律师事务所代理。Li YonghuiThe attorney (practice license number: 11101199611955812, subject to the documents issued by the judicial administrative organ) acts as the agent. The implications of this case for the proof of parent-child relationship are as follows: inheritance cases are based on identity and scope, and the proof of identity relies on evidence. In this case, the handwriting identification could not be carried out due to insufficient samples, and the same applies to the parent-child identification—the biological samples that the decedent may have left should be sealed as soon as possible after his/her death to avoid the inability to conduct the identification.

IV. Practical suggestions and legal basis

Legal basis: Article 1071 of the Civil Code of the People's Republic of China (effective January 1, 2021) (non-marital children and marital children have equal rights), Article 1127 (children are the first-order heirs, including non-marital children), and Article 1073 (lawsuits challenging paternity); Article 39 of the Interpretation of the Marriage and Family Chapter of the Civil Code of the People's Republic of China by the Supreme People's Court (effective January 1, 2021) (if the claimant provides necessary evidence and the other party refuses to undergo paternity testing without opposing evidence, the claimant's claim may be deemed established); and the provisions on application for and conduct of paternity testing in the Several Provisions of the Supreme People's Court on Evidence in Civil Proceedings (amended on December 25, 2019 and effective May 1, 2020). Action list: First, obtain official records such as birth medical certificates and household registration information; Second, organize materials such as the deceased's self-admission, payment receipts for child support, and evidence of cohabitation; Third, collect samples for paternity testing as soon as possible if the deceased is still alive, and retrieve and seal the deceased's samples if they have passed away; Fourth, initiate lawsuits to confirm paternity if no agreement can be reached, and apply to the court for commissioning paternity testing; Fifth, pay attention to the three-year statute of limitations, details of which can be found here.Legal services for inheritance and family property division.

5. Henglu Law Firm's Advice

The core of proving the parent-child relationship is a combination of evidence, rather than "what surname they have" or "whether they look alike". Birth certificates, household registration, self-admission, and rearing facts all have their shortcomings: birth certificates may not list the father, household registration may be omitted, self-admission may be revoked, and indirect evidence may be interpreted as other types of relationships. Linking multiple types of evidence along a timeline and supplementing with expert appraisal is the safest approach. After the decedent's death, there is a limited window for preserving samples. If toothbrushes, hair, and medical samples are not sealed in time, they may be lost forever. When handling similar cases in the Beijing area, it is recommended to...Beijing Henglu Law FirmOrganize evidence under the guidance of professional lawyers to avoid missing the opportunity for appraisal.

VI. Frequently Asked Questions

Q1: If an unmarried child sues to confirm the parent-child relationship, can they obtain the right of inheritance?

There is a significant possibility, depending on whether the necessary evidence is sufficient. If the birth medical certificate registers the father, there are records of paternity in the household registration, or there are self-admission materials, payment records of child support, and evidence of living together forming a chain, the claim is more likely to be supported; if the other party has no contrary evidence and refuses to undergo a paternity test, the court may legally determine that the claim is established. If there are only unilateral statements and a lack of any supporting evidence, and the other party firmly denies it, there is a risk of losing the case. After the paternity relationship is confirmed, the child will participate in the division of inheritance as a first-order heir on an equal footing with other children.

Q2: What evidence is needed to prove the parent-child relationship?

Five categories of materials: 1. Official documents: birth medical certificates, household registration forms and permanent resident registration forms, hospital records; 2. Self-admitted evidence: materials acknowledging the parent-child relationship in the decedent's written documents or chat records, audio recordings; 3. Evidence of child-rearing: transfer receipts for child support payments, school tuition payment records, insurance beneficiary designations, photos and videos of shared living arrangements, and rental contracts; 4. Testimonies from informed witnesses: statements from relatives, neighbors, colleagues, and medical staff; 5. Expert appraisal materials: paternity test reports or sealed records of the decedent's pre-deceased samples. The evidence should be organized chronologically and corroborated with each other.

Q3: How much does it cost to conduct a paternity test and go to court?

Paternity testing is conducted by qualified institutions, and the fees charged typically range in the thousands of yuan, with no unified government pricing. If the decedent has passed away and a sample comparison is required, the fees may be even higher. In litigation cases where the court is commissioned to conduct the testing, the fees are prepaid by the applicant and ultimately borne by the losing party or shared proportionally. The litigation fees for inheritance disputes are calculated based on the amount of the estate, in accordance with the "Measures for the Payment of Litigation Fees" (State Council Decree No. 481, implemented on April 1, 2007). Attorney fees are determined through negotiation between the client and the law firm. Before filing a lawsuit, it is advisable to calculate the cost of the testing and the expected inheritance benefits.

Q4: How long does it take to get the results of confirming the parent-child relationship?

For cases where the appraisal is directly negotiated and agreed upon, the report will generally be issued within two to four weeks after sampling; for cases where the appraisal is requested by the court in litigation, it usually takes one to three months from the time the court identifies the appraisal institution to the issuance of the appraisal opinion. The appraisal period is not included in the time limit for trial. First-instance ordinary procedures are concluded within six months, and summary procedures within three months; inheritance lawsuits involving multiple heirs or complex estate scopes may take longer. If one party delays or refuses the appraisal in various ways, the procedural cycle will be prolonged accordingly. It is recommended to fix the evidence and initiate the procedure as soon as possible.

Q5: If I want to prove the parent-child relationship now, what should I do first?

Four steps to proceed: First, comprehensively collect existing materials, including birth certificates, household registration information, self-recognition records, and custody certificates, and organize them into a booklet; Second, evaluate the feasibility of the identification process. For the deceased, contact hospitals and identification institutions as soon as possible to screen available samples and seal them; Third, communicate with other heirs and keep the communication records, and fix the evidence of their denial or refusal to undergo identification; Fourth, if no agreement can be reached, promptly file a lawsuit to confirm the parent-child relationship and apply to the court for an identification commission. For complex identity disputes, it is recommended to engage a professional lawyer as soon as possible.

The above questions and answers are mainly based on the judicial practice in the Beijing area. There may be differences in the adjudication guidelines in different regions. It is recommended to consult a professional lawyer based on the specific circumstances of the case.

If you are currently facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the relevant evidence materials, to avoid missing the statutory time limit. →Legal services for inheritance·Attorney Li Yonghui·Beijing Henglu Law Firm

Disclaimer: This article is compiled based on the current effective laws and regulations and open adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. If you encounter disputes, please consult a practicing lawyer in time.