Initially the family took up residence at the Château de Montastruc in south-western France, but the rapid advance of the German forces into France followed by French capitulation the next month caused the French government to refuse any guarantee of security to the exiled Luxembourg government.
Inicialmente a familia estableceu a súa residencia no Château de Montastruc no sueste de Francia, mais o rápido avance das forzas alemás seguidas pola capitulación francesa o mes seguinte causaron que o goberno francés rexeitase calquera garantía de seguridade ao goberno de Luxemburgo.