It was once considered improper for a foot soldier to attack a knight.
I do recall that there was a British thing about not attacking officers....would induce chaos etc.
I am a total war kind of guy. If you’re going to go to war, you do whatever is necessary to win. All are legitimate targets... Knights, Generals, Kings, and civilians.
> It was once considered improper for a foot soldier to attack a knight. <
Yes. And Pope Urban II banned the use of crossbows (in 1096) because it gave ignorant peasants a decent chance to take down gentleman knights.