Fifteen, twenty years ago, I would have said yes, but I haven't looked at Joan, fictional or nonfictional, since then, so today I have to say no. Those neural pathways got overwritten with new information. ;) She was one of my top favorites in high school, and I read as much fiction and nonfiction on her as I could get my hands on. Not Schiller, though, I'm pretty sure. Mark Twain, though, yes.

And I did read the transcripts, though again, fifteen years ago. They've been on my list to reread for a while now, when health permits. I will add Shaw on your recommendation.

Something that cahn read and I reread recently: Mary Gentle's Ash. (Cahn liveblogged her reactions reading it the first time, which delighted me and inspired me to do a reread.) It's not quite Joan of Arc fiction, but it's adjacent to it. Are you familiar with it?