Giovanni Bugatti, Mastro Titta, the executioner of the Papal States who executed 514 people

He became an executioner at the age of 17, in 1796. Bugatti noted 516 names of the executed, but two convicts are subtracted from the account, one because he was shot and the other because he was hanged and quartered by his aide.

This episode is also available as a blog post: Giovanni Bugatti, the official Papal executioner who executed 514 people (weirditaly.com)