Question about sites found on map

[LeoTheLip]

This problem has me stumped mainly because I've come up with several solutions for it. Of course only one (if any) is correct. I'd appreciate any help you can give me.

I am playing a user made map. One of the sites that I found states that it enables recruitment of enchantress. However there are none there. Neither in that province nor my home one. Would this be because
1. of an error in the map itself?
2. I need to do something? build a temple or cast some spell.
3. the nation I chose can't recruit them? MA T'ien Ch'i
4. other?

TIA