Northwatch, Southwatch, and the True Watch.  

I called them Northguard and Southguard before, but I changed it because I wanted to add True Watch and it fits with what will be below.  

These are the north-most and south-most holds in the Human Alliance(working name, help me out here people).  Each are ruled by a family, both bound by oath to protect the realm where the mountain's natural barrier ends.  They do so for different reasons, though.  The Kendal family of Southwatch took their oath out of honor, and a desire to protect their fellow man.  The Sully family of Northwatch took it as penance for their tyrannical crimes when they were the ruling family in the realm.  But the Sully family is nearly extinct.  With their last patriarch widowed and without a male heir, both the family and the oath that binds it(and its sworn knights) to protect the realm will soon be null.  

The True Watch is a sacred order of knights, all who hold the power of prophecy.  It is thought that this power comes to those humans who have the blood of the Wandering Folk in them, and that this is the reason they are most common around Southwatch, close to the Wandering Folk's forest home.  
The True Watch have no official keep, but are known for meeting in tents outside or, less commonly, in the halls of families who have invited them to stay.  Their mission is to foresee threats to peace, and stamp them out ahead of time.  Their vision is not infallible, though, and they've been known to miss things, or predict impending doom only for nothing to happen.  They say that time shifts, and that it isn't always easy to follow.  

I don't know that anyone is still following this thread, but I'm still coming up with things.