MASTRO TITTA, THE HANGMAN
Mastro Titta, the hangman who kills Eleonora's young lover, was in real life a stickler about his work. He left behind a notebook full of observations about the 516 death sentences he carried out, with the recorded names of the victims, the crimes they were accused of, and the method used to put them to death.
...“And here he comes now, Mr. Freeman, look to your left at the heftiest man in your field of vision. That’s Mastro Titta, the executioner, crossing the square on that wagon. We’d best follow along—the guillotine is set up two blocks from here. Titta’s an umbrella-maker, you know. Apparently, he usually offers the condemned man a sniff of tobacco beforehand. My man-servant tells me that Titta lives over near St. Peter’s. He’s under the protection of the Papal guards there. He only crosses the Tiber when there’s an execution on. Too dangerous for him here otherwise.”