Thorgerd Egilsdottir who threatens to starve herself to death unless her father eats after the death of his beloved son, Bodvar. Her threat must be seen as doubly heroic in the context of the quote:
I have had no evening meal, nor will I do so until I go to join Freyja. I know no better course of action than my father’s. I do not want to live after my father and brother are dead.
SOURCE: Egils Saga Skallagrímssonar (Egil’s Saga), in The Sagas of the Icelanders, ed. Örnólfur Thorsson, trans. Bernard Scudder (New York: Penguin Books, 2001), p. 151.
Here she is referring to Fólkvangr, the domain of Freyja, where half of dead heroes go.
She also appears in the Laxdæla saga where she is characterized thus:
Everyone soon realized what a woman of strong character Thorgerd was: though she was not one to waste words, once she set her mind on something there was no swaying her – things had to go the way she wanted.
SOURCE: he Saga of the People of Laxardal (Laxdæla saga), in The Sagas of the Icelanders, ed. Örnólfur Thorsson, trans. Bernard Scudder (New York: Penguin Books, 2001), p. 315
and later she is active in shaming her sons into seeking vengeance for their slain brother Kjartan:
Here lives Bolli, your brother’s slayer, and not a shred of resemblance do you bear to your great ancestors since you won’t avenge a brother the likes of Kjartan. Never would your grandfather Egil have acted like this, and it grieves me to have such spineless sons. You would have made your father better daughters, to be married off, than sons. It shows the truth of the saying, Halldor, that “every kin has its coward”. I see only too well now that fathering such sons was Olaf’s great failing. I will address my words to you Halldor...because you’ve taken the lead among your brothers. We will turn back now; I made the journey mainly to remind you of what you seem to have forgotten.
SOURCE: Id. p. 377
So set on vengeance is she that she accompanies the party and, when they balk at the coup de grâce, urges them on:
When Bolli was cornered, Thorgerd “urged them not to hesitate to finish Bolli off and put some space between trunk and head.”
SOURCE: Id. p. 381
which is quite reminiscent of Euripides' take on Electra.