LUIS CAETANO VIEGAS vs ESTRELINA MARIANA R.M.A.DA COSTA

The case concerns the locus standi of the appellant to initiate inventory proceedings for the partition of inheritance left by his grandmother and grandfather. The central legal issue revolves around whether the appellant, as the son of a daughter born posthumously and recorded as illegitimate in marriage certificates, qualifies as a legal heir. The court examines the maintainability of the inventory proceedings based on the evidence of lineage and the applicable laws of succession.