Inheritance law in the Philippines is governed primarily by the Civil Code, which establishes the rules on who may inherit from whom. One of the most debated provisions in this area is Article 992 of the Civil Code, commonly referred to as the “iron curtain” rule. This provision has significant implications for the inheritance rights of illegitimate children.
The Iron Curtain Rule: Article 992 of the Civil Code
Article 992 of the Philippine Civil Code states that an illegitimate child shall not inherit ab intestato from the legitimate children and relatives of his father or mother; nor shall such children or relatives inherit in the same manner from the illegitimate child.1
In essence, this provision creates a legal barrier between legitimate and illegitimate lines of descent. Even when there is a biological relationship, the law prohibits inheritance across this “iron curtain.” This means:
- An illegitimate child cannot inherit from the legitimate children or relatives of his or her parents.
- Conversely, legitimate children and relatives cannot inherit from an illegitimate child.
- The only recognized inheritance connection for an illegitimate child is directly through the common parent.
This rule reflects the historical intent of the law to maintain a strict distinction between legitimate and illegitimate family lines.
Implications of Article 992
The practical effect of Article 992 is that illegitimate children are legally excluded from inheriting from their legitimate half-siblings or other legitimate relatives, and vice versa. This has been criticized for:
- Unfairness to children: A child’s inheritance rights depend on the marital status of their parents, a factor beyond the child’s control.
- Unequal treatment: Illegitimate children may inherit from grandparents by right of representation, but legitimate children cannot inherit from illegitimate siblings or relatives.
- Outdated assumptions: The law presumes hostility or separation between legitimate and illegitimate families, which does not reflect modern family dynamics.
In the landmark case Aquino v. Aquino (2025)2, the Supreme Court of the Philippines applied Article 992. The Court ruled that:
- An illegitimate grandchild may inherit from a grandparent by right of representation, taking the share of their deceased parent (the illegitimate child of the grandparent).
- The “iron curtain” does not apply in the direct line of ascendants and descendants (i.e., grandparents and grandchildren), recognizing the primacy of blood relations over legal classifications.
- The illegitimate child or grandchild must establish the family connection, which can be done through documentary evidence or DNA testing.
This ruling effectively “broke open” part of the iron curtain, aligning inheritance law with contemporary values of fairness and recognition of biological relationships.
The Aquino decision is significant because it:
- Affirms that inheritance rights should prioritize blood relations over the legitimacy status of parents.
- Moves Philippine inheritance law closer to international human rights standards that protect the rights of all children regardless of their parents’ marital status.
- Encourages the use of modern evidence, such as DNA testing, to establish family ties in inheritance disputes.
Article 992 of the Civil Code historically imposed a rigid barrier between legitimate and illegitimate family lines, limiting the inheritance rights of illegitimate children. However, the Supreme Court’s ruling in Aquino v. Aquino represents a progressive step toward dismantling this barrier, emphasizing fairness and the importance of blood relationships in inheritance law.
As Philippine society evolves, so too does its legal framework, increasingly recognizing that children should not be penalized for circumstances beyond their control. The “iron curtain” is no longer impenetrable, and inheritance law is becoming more inclusive and just.
- Civil Code of the Philippines, Art. 992. ↩︎
- Aquino v. Aquino, G.R. No. 234234, Supreme Court of the Philippines (2025). ↩︎















