From ideals to expected behavior
Descriptions of chivalry often stay at the level of grand virtues. This article looks at the more specific behavior that writers asked of knights, and at the way those expectations were passed on. As with most medieval ideals, the rules of conduct were not enforced by a single authority. They were expectations repeated in stories, sermons and advice, and they were applied unevenly.
Courtesy and manners
The word courtesy comes from the court, and a knight was expected to behave well in a noble household. Writers praised several habits.
- Speaking politely and avoiding boasting, crude language and quarrels at table.
- Showing respect to superiors and kindness to servants and guests.
- Being generous with gifts and hospitality.
- Treating women with deference in noble society, at least in the idealized version.
- Dressing and carrying oneself appropriately for one’s rank.
Many of these rules overlapped with courtly etiquette, and the manners taught to young nobles in great households were meant to prepare them for court as much as for war. Poems about courtly love gave this refinement a romantic setting, though the literary picture of devotion to a lady was a convention of the stories, not a description of ordinary marriages.
Treatment of prisoners
One of the clearest practical rules concerned captured fighters. A knight who surrendered was normally expected to be spared and held for ransom, and a captor was supposed to treat him according to his rank, feeding and housing him decently. In return, the prisoner was expected to keep his word, whether that meant paying, returning to custody, or not fighting again until released.
These customs developed in part because they were useful. Ransom was a source of income, and both sides risked being captured themselves, so a shared habit of mercy toward nobles served everyone’s interests. The rule was far less reliable for common soldiers, for troops of a defeated city that had refused to surrender, or in conflicts regarded as religious or rebellious. Historians point to episodes where prisoners were killed on a battlefield, often when a commander feared a counterattack, which shows the code bent under pressure.
Protecting the weak
Church leaders and moralists repeatedly told knights to defend widows, orphans, clergy and the poor. This was less an invention of literature than a continuation of earlier efforts to limit violence. The Peace of God and Truce of God movements, which began in the late 10th and 11th centuries, tried to shield churches, clerics and unarmed people from attack and to forbid fighting on certain days. Their success varied, but they gave the church a language to criticize knights who preyed on others.
Reality often differed. Armies needed food and shelter, and campaigns commonly involved plunder and destruction of farmland. Chroniclers sometimes condemned this and sometimes simply recorded it. The code as taught probably worked best as a standard of criticism, giving moralists a way to say that knights who harmed the helpless had failed at their own purpose.
Loyalty and fair fighting
Knights were also expected to keep faith with their lord and their word, avoid treachery, and not strike a fallen or disarmed opponent without cause. Ideas of fair fighting were stronger in tournaments and personal combats than in war. In war, ambushes, feigned retreats and attacks on unprepared enemies were common and generally accepted as clever, not dishonorable, though writers sometimes argued about where cunning ended and treachery began.
The idea of loyalty to a lord was often the hardest to practice, since competing claims by kings, relatives and overlords could pull a knight in different directions.
How the rules were taught
Because there was no common handbook, instruction came from several places.
Household training. Boys of noble families often served as pages and then squires in another household, learning riding, weapon skills and manners by observation and practice. This was the main route for knightly training.
Romances. Stories of Arthur’s court, the Holy Grail legend and other tales offered models of bravery, mercy and courtesy, as well as warnings about pride and broken vows. Authors such as Chrétien de Troyes wrote in the 12th century for noble audiences, and later romances kept the pattern going. These were entertainment first, but listeners clearly absorbed their values.
Treatises and manuals. From the 13th century onward, authors wrote explicit advice. Ramon Llull, writing in the later 13th century, composed a book on the order of chivalry that treated knighthood as a sacred duty. In the 14th century, the French knight Geoffroi de Charny wrote about the qualities and hardships of a man at arms. In the 15th century, Christine de Pizan wrote on arms and warfare for a French audience. These works differ in tone, but all mix practical advice with moral argument.
Sermons and church teaching. Clergy linked knightly duty to Christian virtue, comparing a knight’s sword to a tool for defending the faithful.
Ceremony. The rituals of dubbing, which could include a vigil, blessing and vows, conveyed that knighthood carried obligations as well as privilege.
Reading the evidence carefully
Because most sources about conduct are prescriptive, they tell us what authors wanted rather than what happened. A manual urging mercy suggests mercy was not guaranteed. A romance in which a knight spares a defeated enemy shows what audiences admired, not what they saw on campaign.
Still, the expectations had real effects. They shaped how nobles presented themselves, how they judged each other, and how they justified their actions afterward. A reputation for courtesy and fairness was useful, and a reputation for cruelty could damage a lord’s support. The code of conduct was best understood as a shared standard that people appealed to, argued over and sometimes ignored, rather than a strict set of laws.