Kernrechtsfrage
Whether the engagement-breach damages claim is governed by cantonal or federal law.
Extrahierter Entscheid
The engagement contract belongs to family law and is therefore subject to cantonal law under Art. 76 OR.
Extrahierte Begründung
Because the action is based solely on non-performance of the engagement contract and qualifies as a contractual damages claim, cantonal law applies; the lower courts correctly relied on cantonal law.