Richard III's Final Death Blow - Skull Examined | Video

"A sword or the top spike of a bill or halberd" caused a major sharp force trauma to the base of the English monarch's skull according to School of Archaeology and Ancient Histor and the East Midlands Forensic Pathology Unit. They studied the skull to try to determine the direction in which the blow came from and how deep the weapon penetrated. 

credit : University of Leicester