Questione giuridica chiave
Whether the federal appeal was admissible against the cantonal decision
Decisione estratta
The appeal in civil matters was admissible because the challenged ruling was final, concerned child protection measures, and the appellant had a legally protected interest.
Motivazione estratta
The cantonal nullity complaint was not available against the appellate decision, making the Obergericht judgment final under Art. 75 BGG; the matter fell within civil law under Art. 72 BGG and the appellant relied on constitutional and private international law grounds.