This is a great idea, and would work fantastically with the ability to marry off your children to NPCs instead of just to the children of faction leaders.

If it came at the cost of the unit it self, and it promoted a single man to champion it might work. Let the champion keep whatever equipment the unit had, and then disband the unit.

So it becomes a choice, do you keep the unit, or do you keep the champion.

Excellent idea!

... that being the "Man of the Hour" from the Total War series and not the dog. I always enjoyed it when that happened and it'd add a little more depth to units.

I like this.

I don't see any reason why you couldn't have both the unit and the champion. Units recover members lost in combat so why wouldn't they do the same with promotions?

I'd like a ceremony as in knighthood to take place and the character gets a medallion with some minor bonus and the nation pays out 50 gildar for the ceremony and medal. Champion would keep equipment of the unit.

We'd like to control our squires and knight them as their ruler. Tell me what King doesn't have the right to create a champion?

Nice idea. I like how it worked in Total War games, and it would work well here as well.