Amongst the many ridiculous events in the Church’s history, the Cadaver Synod has to rank in the top five. Basically, they dug up a dead pope, cut off his fingers, put him on trial, found him guilty, reburied him, dug him up again and then threw him into the river. Here’s another article about it.
Anyway, that’s all inconsequential. What’s interesting is that the wikipedia page’s discussion is categorized as “Low-importance Middle Ages articles“. Following through to that will reveal a vast depository of obscure and random medieval history. If you ever feel the need to write historical fiction set in the dark ages, this is the place to be.
PS. Don’t forget about my Tumblr, I’ve been posting there frequently.