Kernrechtsfrage
Whether the French judgment could serve as a valid title for definitive debt enforcement despite the debtor's challenge to service under Art. 47 CL and Art. 659 NCPC.
Extrahierter Entscheid
The debtor did not show any manifestly incorrect factual findings, and the service complied with the requirements relied on by the lower court; the challenge failed.
Extrahierte Begründung
The complaint attacked the factual findings about what the bailiff knew and when. Those findings are factual and were not shown to be arbitrary. On the established facts, the bailiff did not know the Swiss address when sending the simple letter, so the service was not invalidated.