 who were often slaughtered after capture, and who were viewed during battle as mere impediments to knights' getting to other knights to fight them.Chivalry developed as an early standard of professional ethics for knights, who were relatively affluent horse owners and were expected to provide military services in exchange for landed property.Early notions of chivalry entailed loyalty to one's liege lord and bravery in battle, similar to the values of the Heroic Age.