@Count Fudgula
Yeah, you're right about the navy. I should make that sure.
But what about the Knights Santiago.
The Province info says that you get a bonus in Leon but if this would only occur during crusades this would be strange, wouldn't it?
About the Jinetes you're also right, I played the Spaniards once and thought they were nice. Especially because when you build them in Leon (again this Province) they keep coming up with at least one star right from the beginning. Don't ask me why.
But by special units I thought of some come Knights like the other former non playable factions have....

Well, it somehow forces me to go back to use more of my assassins. ...One of 3 star ass-assins just went to border fort and said hello
Cheers