Okay, I’m not a serious researcher, but digging around a little I see that every source says that medieval people averaged under 5’ 6" in height, based on skeletal analysis, except one guy, from Ohio State or something, who is quoted in a bunch of BuzzFeed-like sites claiming that his analysis of everyone else’s data shows that medieval people were actually tall.
Maybe he’s a genius who’s turned the entire field of forensic osteology on its head, but I’m skeptical. I’ve seen up close way to many examples of bitter small town professors with no academic reputation to lose and everything to gain from pushing out a viral man-bites-dog “scientific” nuglet.