Questione giuridica chiave
Whether the public law appeal was admissible despite the availability of a nullity appeal on the federal-law jurisdiction question.
Decisione estratta
No. The territorial-jurisdiction challenge could be raised by nullity appeal, so the public law appeal was subsidiary and therefore unavailable.
Motivazione estratta
Questions about the deceased’s last domicile and the resulting Swiss jurisdiction were questions of law reviewable through the nullity appeal; the public law appeal is excluded by absolute subsidiarity.