Code of Chivaltry
This might be of interest to my readers:
While there was no single code that served as a definition of how a knight should act, there were several lists written down during the Middle Ages. One example code can be found in the book Chivalry by 19th century French historian Leon Gautier.
Note especially the Sixth point!
I. Thou shalt believe all that the Church teaches, and shalt observe all it's directions.
II. Thou shalt defend Holy Mother the Church.
III. Thou shalt defend all weaknesses, and constitute thyself the defender of them.
IV. Thou shalt love the country of thy birth.
V. Thou shalt not recoil from thine enemy.
VI. Thou shalt make war against the infidel without cessation, and without mercy.
VII. Thou shalt preform scrupulously thy feudal duties, if they not be contrary to the laws of God.
VIII. Thou shalt never lie and shalt remain faithful to thy pledged word.
IX. Thou shalt be generous and give largesse to everyone.
X. Thou shalt always and everywhere be the champion of good and right against injustice and evil.