I was talking to a friend of mine who has had a longstanding interest in how medieval/renaissance warfare developed into modern warfare, and the stumbling blocks/obstacles encountered along the way. As I understand it, the standard bearer was not the same as the messenger who would speak to the opponent’s side to request either a parley, determine terms of surrender, etc. These messengers were not to be harmed under any circumstances, but that did not apply to standard bearers at all. Correct?