I think the story of Rapunzel has the most obvious similitude, everybody realizes just hearing the name of this weak Knight.

In fact the woman gets inspiration from Rapunzel , the famous character of the homonymous Grimm brothers fairy-tale. Here the protagonist is a sweet and young princess who lives kidnapped in a castle by an old witch, who did not want to show her to anyone because of her extraordinary beauty. The only entrance for the girl's room was a window, to climb it, the witch asked Rapunzel to throw down her long plait, using it like a rope. The girl was totally alone, the only thing she was doing to kill the time was to sing, until one day, came from the forest a prince, hearing her voice he fell in love, asking the girl to throw the plait down to make he climbs up, then asking her to marry him.
Rapunzel accepted, but the witch found out her and she cut her plait, so the prince can't reach her anymore. Furthermore with a magic spell she sent the princess very far, and for the desperation, the prince threw himself from the walls of the castle and for his bad luck his eyes were hit by a few stings and he becomes blind.

He wandered for long time to search the young woman, when a day, he heard her wonderful voice and he soon recognized her. When the two hugged each other, the girl's tears were able to heal the prince from the blindness; so he can see again , then he married Rapunzel and they live together happy.

Obviously each of us rolls for the laughs asking “ What about this one compared with Rapunzel??? ”, this is the usual trick of the total character change, where we see, this time, a really slaughter! XD
The sweet Rapunzel here becomes a pitiless murderous of the Chess No Koma, bad and incorrect who loves only his little brother.
Rapunzel is aware to be beautiful and she thinks that everybody must recognize her physical dowries, that makes really laugh adding the fact of the melodious and sweet Rapunzel voice, here becomes a hysteric and mad one who laughs like a mad and overdoes to every exclamation (not talking about the difference of the language's quality XD)!

What undoubtedly they have in common are their very long blond hair used as "weapons", one to raise the man who loves, and the other in order to fight. Furthermore Rapunzel usually dressed the hair "turnip style", because, as we know, the Rapunzel origin is in being daughter of a woman who marked her destiny wishing the turnips which were growing in the next orchard of her, arriving to force his husband to steal them for satisfies her! However the orchard which stole the husband from, it was really that one of the old witch, who in change was asking the woman's child, Rapunzel...

Then, not only the physical appearance, the personality and the opposites manners, but also the destiny! In fact, while Rapunzel heals his prince and marries him living happy together for the eternity; Rapunzel kills the people without any reason (with his immense pleasure).
Furthermore she does not meet any prince able to save her from her destiny, on the contrary ... she is violently killed by Ian who directly removes the head (doing a favour to everybody) instead of cutting her hair.

Even here the moral of the story is the same… Not always behind a legend there is the truth, and none of us can know for sure if the prince married a beautiful girl with a melodious voice, or instead an old and acid woman, whose head would be better put in an orchard of turnips.