Violence in your Campaign Setting

Aside from the violence perpetuated by the player characters in your campaign games, a GM needs to consider how much violence is inherent in the campaign setting as a whole.  In a recent EN World thread on Banditry, EN Worlder (and friend of the show ;-) ) frankthedm pointed us to Chapter Eight - Violence and its Control in the Late Renaissance: An Italian Model by Gregory Hanlon a section of text book on googlebooks called A Companion to the Worlds of the Renaissance (edited?) by Guido Ruggiero.  It touches on banditry and violence in late Renaissance times that is good food for thought when designing your own campaign setting.  Check it out for yourself.