Actually, that was only PART of the punishment.
The traitor would be hanged until almost dead; there was no sudden drop to break the neck. Then, the traitor would be revived only to be hanged again. This may or may not have gone on for a while. Then, the traitor would have been emasculated and slowly disemboweled and his entrails burned while he watched. Finally, he would be beheaded and quartered and his head sent to the Tower and the remaining parts sent to the four corners of the kingdom. Females were burned at the stake.
Sorry, no cookie on this one.
'NOTHER QUESTION:
What outfit does Colonel Jethro E. Culpepper head?