To help you figure out who you're looking for, could you tell me more about:
* Which book or series are you interested in? Different clans and generations have different mothers.
* What kind of mom are you thinking of? Do you want a specific character, like a queen (mother of kittens) or a mentor figure who acts like a mother?
* Do you have any other clues about the mom you're looking for? Their name, their appearance, or their relationship to other characters might help me narrow it down.
Once I have more information, I can give you a more specific answer!