Aguilar v. Siasat

Summary

This case involved a succession dispute where petitioner Rodolfo S. Aguilar claimed to be the legitimate son and sole heir of deceased spouses Alfredo Aguilar and Candelaria Siasat-Aguilar, seeking surrender of property title certificates held by respondent Edna G. Siasat. The RTC and CA dismissed the case, finding insufficient evidence of filiation. However, the Supreme Court reversed, holding that Alfredo Aguilar's SSS Form E-1 acknowledging petitioner as his son constituted valid admission of legitimate filiation under Article 172 of the Family Code. The Court emphasized the presumption of legitimacy for children born during marriage and ruled that such acknowledgment in a public document is a consummated act requiring no further judicial action. The decision liberalized proof of filiation while protecting children's welfare as paramount consideration.