Cruse of France

I have just discovered a fascinating website which gives statistics and maps on the frequency and distribution of surnames in France. There seem to be two main clusters of the surname Cruse in France: one in the Gironde département and the other in Paris. The Gironde cluster is probably accounted for by the Cruse wine-making dynasty who owned the Chateau Pontet-Canet for over 100 years. Further information can be found in the Wikipedia article on the Cruse family.