I do not think many people are aware of his post-war politics:

https://en.wikipedia.org/wiki/Oswald_Mosley#Post-war_politic...

There are quite a few things there (e.g. that he wanted laws against marrying someone of another race, that he saw himself as left wing, etc.) that I did not know, although id did know of his involvement in the Union Movement.

He was also a Conservative MP (later joining Labour)