Who she was determined a great many things about politics, social structure, and many other things. I don't think she's a main character; her influential actions were not a straightforward, story-forming conflict with an opposing force that resolved into a climax, but an endless array of straightening things out. . . .
And, she needs a name.
She's not a bit character whose name really doesn't matter, but she's not a main character to let me know firmly and completely what she is like and so what an appropriate name would be. . . .