Question juridique clé
Whether the respondents had standing to sue for partition as registered co-owners/heirs
Solution extraite
The respondents' standing was upheld because they were registered in the land register as co-owners; the appellant had to bring a hereditary action and land-register rectification action if she wanted to challenge that status.
Motifs extraits
The land register enjoys probative force and registration creates a rebuttable presumption of ownership. The heir certificate is not materially res judicata, but its alleged inaccuracy cannot be contested incidentally in a partition action without claims for inheritance recovery and rectification.