Her “uncle” and Wallis Simpson were flaming Nazi sympathizers, film of them both riding in a car with Hitler while on a trip to Berlin. Churchill wanted him arrested for treason because he found out that Edward was colluding with the Nazis to force a peace with England.
This documentary spells it all out.
https://www.youtube.com/watch?v=LXamWEGhBgA
I read a biography of Wallis a few years ago & she & Edward were pitiful people. Had no hobbies but conspicuous consumption. He was obsessed w/ her. Pathetic rich people floating around the globe.
It was a really fascinating, but ultimately depressing read.