Christian Friedrich von Kahlbutz is looking remarkably fit for his age. The Prussian knight died in 1702 and his body hasn’t decayed.

No one knows why. He wasn’t embalmed. A legend says it’s God’s punishment for an oath he broke while living. Scientists think he lost a lot of blood before dying and that the local soil lacked materials that would promote decay. But that doesn’t explain why other bodies nearby did rot.