From the introduction:
C&S Essence (C&S E) is simply designed to try and give you a taste of playing the Chivalry & Sorcery RPG but with far fewer, and simplified, rules.
C&S is a game set in medieval Europe. This is a time of social inequality and a rigid hierarchical structure but also a time of changes with the rise of the merchant classes in the towns eroding the old Feudal structure. Combine the uncertainty of Feudal warfare, upstart burghers, conflicts between Church and State and then add in evil magicians, and non-human peoples not necessarily friendly to Man and you have a broad scope for Heroic, or not so heroic, adventure.