Ramon Llull wrote The Book of the Order of Chivalry around 1279–1283.
Llull was a philosopher, theologian, and writer from Majorca whose works addressed religion, education, politics, and the conduct expected of warriors. His Book of the Order of Chivalry presents knighthood as a moral and social vocation rather than merely a military occupation. It discusses the knight’s duties, virtues, training, and relationship to justice.
The work became influential through later manuscript circulation and translations. It helped shape discussions of ideal chivalric behavior in the late medieval world, where writers increasingly connected battlefield courage with Christian ethics, loyalty, and protection of the vulnerable.
Llull’s treatise is not the same work as later manuals of court etiquette or chronicles about individual knights. It is a didactic text that explains what knighthood was supposed to represent, even though actual medieval warfare and politics often fell short of those ideals.