This is does a fair job of bringing history to life! It's a video from the History Channel on the war of the Lombards vs. Charlemagne, probably about five minutes long. It has some reenacted history with voice-over of some professors.
Please note: There are some battle shots with a few slices by the sword; however, there's no blood. The losing Lombardy king is shoved to the ground by Charlemagne.