§1301 Rückgabe der Geschenke, really relevant german law. Civil Code (BGB) § 1301 Return of gifts "If the marriage does not take place, each fiancé can demand that the other hand over what was given to him as a gift or as a sign of the engagement in accordance with the regulations on the return of unjust enrichment. In case of doubt, it can be assumed that repayment should be excluded if the engagement is dissolved by the death of one of the fiancées."