The definition for feminism is: the advocacy of women's rights on the grounds of political, social, and economic equality to men.
So I am not sure I can agree labeling her as a feminist.
But she was indeed a great women who fought for respect for femininity, which is even more important than the feminist battle.
Feminism in its true sense is support for femininity. Women are of equal worth as human beings but their roles are not equal.
The so called feminists we think of and that you're definition describes advocates and androgynous society, the kind that lets men like Bruce Jenner cut off their schmendrix so they can go to the bathroom with your daughter the kind of women who don't really want to BE women...
Does that help?