Feudal lords education in medieval western Europe. This is related to the knight system and the fief vassal system. The purpose is to train guards with military ability. It prevailed in the 9th-12nd century. Knights are the middle and lower classes of feudal lords and need to practice martial arts to prepare for war. To serve the upper lords, we need to learn a set of knight etiquette culture. There is no school that specializes in training knights. Family education before the age of 7-8, learning religion, morality and health; 7- 15 years old is etiquette education. The children were sent to the official residence of the upper lords as waiters to learn manners, literacy and so on. Learn less math, Latin and French, and practice martial arts and running; 14 to 2 1 year-old, educated by servants, learning knight riding: riding, swimming, throwing guns, fencing, hunting, dismounting, reciting poems, serving lords and couples, raising war horses and rubbing soldiers; 2 1 year-old was awarded the title of knight. Knights lack cultural knowledge.