Curious, but on two of my late game runs the only female npcs I ran into that I could recruit looked like standard peasant / dressed types.  Nothing special.  Then I noticed that one of the neutral town's king was married and his wife was decked out in armor with a sword, but I've only seen her that one time.

Did I just not build fast enough to attract this slightly more unique looking female npc or do certain factions / neutral parties start with different options then what can be recruited?  A quick test I did last night was to mod a super buffed soverign and then scout the map and out of the 9 or so npcs I could find, 4 were female and all wearing the same standard dress / peasant look.