The term refers to mounted warriors, primarily of European origin, who rose to prominence during the medieval period. These individuals were often members of the nobility, bound by a code of chivalry, and served as heavily armed cavalry in feudal armies. Their military effectiveness stemmed from their training, armor, weaponry (such as swords, lances, and shields), and the use of warhorses. A relevant example includes the Crusades, where these warriors played a significant role in military campaigns in the Middle East.
The importance of this warrior class lies in its significant impact on the political, social, and military structures of medieval Europe. They represented a powerful force that contributed to the decentralization of power during the feudal era, with allegiance given to local lords rather than a centralized monarchy. Additionally, their code of conduct influenced social norms and contributed to the development of courtly culture. They were also a crucial component of warfare, dominating battlefields for centuries.