What religions + cultures do you think the Saltus Witches are based off of?

In my opinion sso is pretty good at drawing from real life sources for the fictional things in the game, like how the magic system and Keepers of Aideen are obviously based off of Celtic paganism. I'm assuming that sso also probably had atleast one religion that they used for reference while making the Saltus Witches.

Tbh, the main reason I wanna figure this out is because I want to make a mood board for Abigail and want to represent her character well.