M. Norwood, good point. From the perspective of sparring and other activities, it does have some commonality with the original 'swordsmen'. But there obviously has to be the point of removal from the context of killing. And at that point, the discussion goes well beyond a fencing context, of any kind.
One idea concerning the original swordsmen. Although they obviously were proficient fighters...they did have some cultural limitations on their use of weapons and violence, as weak as these proscriptions may have been.
The medieval church certainly tried to limit the days on which judicial or military combat was appropriate. Also, it wasn't uncommon for the lower aristocracy to have their lords put into writing the number of days they were expected to hold out on sieges, before they could honorably surrender/escape. And on occasions those who did so, were allowed to leave a battlefield intact by the enemies. (Saladin did this several times).
Plus the obsession with ransoms played a limiting factor...at least with the nobility. In that regard, some of the fighting may have been intended to disable or stun rather than kill. Somewhat similar to the situation with the Jaguar/Eagle/Hummingbird warriors in the Aztec empire...although obviously the fate of hostages was a little different.
