For me it ws during my first campaign as the english. After conquering bordeaux i moved a couple of generals out of the castle to build watchtowers on my newly expanded borders. As one lone general built his watchtower it revealed a nearby half full stack of french troops. And then i noticed that the general was in fact my king and he had used up all of his movement points. Oh dear.

So at the end of the turn the french stack attacks. I cannot retreat, so i think "i may as well try to take as many as possible with me" and prepare to fight. Hilly terrain, me: 1 king with about 40 bodyguard knights. Enemy: 2 units dismounted feudal knights, 2 peasants, 1 armoured sergeants, 1 crossbow, 1 ballista.

Proceeded to lead the enemy army on a merry chase around the hills in an effort to tire them out and spread them out a bit. Managed to get the crossbows isolated and attacked them, but lost quite a few knights to crossbow fire in the progress and got a bit bogged down fighting, since i didnt want to withdraw, reform and charge as this would expose me to further fire. Finally routed the crossbows, which was a relief as they had whittled my forces down to about 30 knights, not good at this early stage of proceedings.

At this point the ballista was starting to really annoy me, taking out the odd knight here and there, so i managed to get around behind the rest of their forces and take most of them out. Unfortunately, in my haste i neglected to notice a unit of peasants nearby who managed catch up to attack me from behind while i was taking out the ballista crew. Eventually i managed to rout the peasants, but at the cost of now being down to about 20 knights. Also there were still 4 or 5 ballista crew left who, annoyingly, did not rout, and would proceed to take the odd pot shot at me for the rest of the battle.

The rest of the battle was a matter of getting uphill from the enemy units, forming up, waiting for the enemy to get to the right distance, and charge. Over and over again. It was during this battle that i mastered the art of the perfect charge. Also, because i was letting my enemy come to me, i was able to rest my knights while the enemy were progressively becoming more and more exhausted. Even so, it was a battle of attrition, and i was losing 1 or 2 knights for each charge even though i was killing many more each time.

Eventually though I routed the final unit of DFKs, having just 5 of my bodyguard remaining. Final toll was about 400 enemy to 35 knights. My king got quite a few good traits and experience points after that.