1. William Wallace
This is not just another name for an execution method, but it is the name of a historical figure. He was executed by a method that was popular in Scotland and England during the medieval era. King Henry III started using it in the 13th century, but its use continued up to the 19th century. A person was hanged first, then drawn and finally quartered. Only the lucky ones died during the first phase, while strong and tough people like William Wallace stayed alive almost to the end of this horrible execution. His death and surely the duration of the execution obliged us to declare it as the worst of these most painful cruel horrific deaths and execution methods in history.