And that doesn't even get into the yelling and crying of despair that echoed throughout battlefield of soldiers that were in great pain and slowly dying.
You are right. Skeletal remains is one thing, reality is a lot darker. Lying there in agony waiting for the enemy to come and finish them off, vultures circling above, it was quite rough.
We should also mention that one of the best ways to kill a late medieval knight is too knock him from his horse, hold him down on the ground, and stab him through the eye-slits in his helmet.