Women in Mahabharata - Pushkaradharini
She lived in Vidarbha and was the wife of a brahmin whose tapasya made three kinds of leafy greens taste good.
She herself was very preoccupied with her count of paap and punya, and s she starved herself until she was emaciated. She also, at one point, started to wear only the clothes that she made by sewing up naturally fallen peacock feathers.
Her husband once wanted to perform a yajna, but she refused to participate since she abhorred violence. However, her husband dragged her into the performance by threatening to curse her if she didn't comply.
Another brahmin named Parnada, who was also participating in that yajna, was commanded by the goddess Savitri to sacrifice a deer that he was friends with, but he turned her down.
However, that deer too turned out to be Dharma in disguise [he was suffering through a curse], and he forced Parnada and Pushkaradharini's husband to kill him for the yajna.
This sacrifice freed Dharma from his curse, but it destroyed all the tapasya powers of the two brahmins. Finally, they submitted to Puhkaradharini and let her guide them through regaining their tapasya credits, this time through non-violent means.