ヴァルター・シェレンベルク
Under the code name Operation Willi, Nazi agents, principally Walter Schellenberg, plotted unsuccessfully to persuade the Duke to leave Portugal, and contemplated kidnapping him. Lord Caldecote warned Churchill that the Duke "is well-known to be pro-Nazi and he may become a centre of intrigue". Churchill threatened the Duke with a court-martial if he did not return to British soil.