Responsibilities the knights had
The first responsibilities that knights had was they were expected to be loyal and fair and to protect. Being a knight they had to live by a strong code called chivalry. They had to protect the helpless. They also had to perform acts in the gallantry as a tradition for kindness to women.
Another responsibilities that the knights have is doing Jousts and tournaments cause they were a big part of the knights life. Jousts are a sport, exercise, or as a serious battle. Tournaments had a team of knights in a one-on-one battle. The knights armor improved every couple centuries, by the 17th century we started using gunpowder and canons more so the knights that still did one-on-one fighting it didn't do much of the job when it came to war.