Answer:
to show that betrayal of knightly duties could be disastrous
Explanation:
The legend of King Arthur which narrates the life of King Arthur and his knights of the round table, his adventures, the use of magic, the theme of love between him and his queen was written to show the importance of knightly duties and the consequences for flouting them.
King Arthur takes the knight code very seriously with his knights and legally punished any knight that flouts the code
