Nenrildë's life faced hardship even before she was born. Her father was also an equestrian in Gondolin and took care of the finest breed of horses there, called the Tumladen chargers. When Gondolin was attacked, he was slain but Nenrildë's mother fled with her inside her, with the guidance of Princess Idril. Along with them, the colt Nenrildë's father meant for her followed them out.

Nenrildë was born in Lindon next to the shiny sea waters in the sun, after which she was named. The colt was her only connection to her father and she went on to keep his line alive, to breed more of them.

One fateful day when she was moving her herd by the road she was ambushed by the Orcs and many of her horses died. She learned the hard way that she had to protect them, and so she decided to be trained to do so. That is when she met her trainer, a warrior who in Gondolin was once a servant, friend and a trainee of the Hammer of Wrath in Gondolin.

He was set to fully initiate in the house but never had the chance before the city was attacked. Not yet bound by an oath, he decided to help those fleeing the city, Nenrildë's mother among them.

During the training they got to know each other very well, and the regular days of meeting became weeks and months. Eventually they confessed love to one another, got married and she gave a birth to her son.

One day her husband and son went missing without a trace and left his sword behind which was not his wont. Nenrildë took the sword and tried to trace where they had went. When she finally found her son, his body was tortured and broken and as he was fading away, there was nothing she could do. Her husband was never found.

With her spirit broken, she took her time mourning the loss of her family, and was considering to sail to West. Touching her husband's sword in her thoughts, she decided that she would not let the lessons of her husband go to waste. She would not stop avenging her husband and son, not as long as she was still in Endor.

While she still has a sweet and motherly side to her, her enemies turn her into an entirely different person: they awake a flame in her, driving her into a frenzy that cannot be satisfied without drawing blood.

These days she can be found in Imladris, under the Hammer order of Bar-en-Vanimar.