The church in Medieval times used to punish people who fell asleep or didn't go to church. Sometimes the church or country will torture people of other religions in oder for them to conform in to the Christian Baptist/ religion of that country..

Rosary Was a used for people who did not go to church or fell asleep during the service.

The church also used torture to make people who aren't catholic conform and believe and take up the catholic religion. The torture was both deadly and extremely painful.
The church could not sentence the heretics to death, therefore the church would use the HEAD VICE. This device was large enough to fit the Heretics head in, then the device would be turned and tightened. This resulted in the victims head been crushed. The teeth of the victim were also crushed and the bones were broken, eventually the eyes of the victim would fall out of their sockets from the immense pressure the head was under.
Head VICE
heretic fork: this was a two sided prong that went between your chin and your chest. You could not talk with instrument in place and it was very painful