lime_pickle:
Thanks. If you can recommend any historical sources - sadly, they'd have to be translated ones - where I can read more about this era I'd be really grateful. I have four Korean history books, now, and a fifth on the way, but many of them focus on more modern epochs, rather than the early/mid Joseon. I'm a bit wary of Twitter/other social as often it just repurposes what people 'know' from earlier dramas.
I'm reading the Memoirs of Lady Hyegyeong, which director Jung Ji In mentioned as a reference she used. There's a link somewhere in this thread to a pdf you can download, I bought a copy on Amazon.
This tweet mentions a bunch of other historical records she referenced and had actors read, unsure which would be available in translation, beyond the Memoirs.
https://twitter.com/filmwuju/status/1482710882849521665?t=uQauLK1blNlhrTKoW3H-ZA