Hostess of Fertility

I don't know if it has been brought up before, but isn't this called the Benevolent Mistress in the anime and the LN translation (at least the one I read)? Also some other names are slightly different than what I am used to. Can anyone tell me why?

I was wondering if she was in the Freya famillia.

If she was, and since the description of Allen alias mention Freya's chariot, maybe she in a duet with her brother : their aliases look the same since start they with Vana, moreover Freya's chariot is supossed to be by pulled by two cats and they're cat people so if Allen is one maybe she used to be the second one. In this way the chariot represente their duet. 

Further more this could explain why allen and her cut ties : they was in a duet but Anya leave to go with Mya, but Allen fellings are hurt so he cuts ties ...

My apologies for the poor english I'm french.