foot knights

[BAD]

I just like to use them (Lithuanian Cavalry). I have them. So why not. Nice for maneuvering into flanks and rear. Sure I could have an army made of just Halberdiers, Boyars, Steppe Heavies, Pavise Arbalesters and some Druzinha's if I'm feeling adventurous. -_- But WoW I would get bored so quick.

[bluebird]

I had a previous campaign where I had armies made up of purely chivalric knights, dismounting a few as needed before the battle. They were pretty invincible to be honest, better than anything the AI could muster. The only downside is the cost.

Royal knights can dismount before a battle so why not build a few of those to use as effective heavy Infantry. Personally I'd look to mercs to fill this hole, Varangian guards or huscarles are good if you can get em.