List of unsolved murders (before 1900)
This list of unsolved murders includes notable cases where victims have been murdered under unknown circumstances. == Before 1800 == Anselm Adornes (58) was slaughtered by a group of unknown assailants on 23 January 1483 while staying at a monastery at North Berwick.
Source: Wikipedia — List of unsolved murders (before 1900) (CC BY-SA 4.0)