Little is known of her parents,  all that was known was what they called themselves: Maireldo and Alyamil.  From what the records shows they lived in Mirkwood from the very beginning of  the second age.

There Alyamil granted her husband, Maireldo, two children, a twin. The first one was a boy who came into the world al screaming, roaring and fighting, they gave him the sindarin name: Baravaethor, the second one was a little girl, smaller in posture to the first one and far more paler then the first child, but the child was born dead...

Alyamil cried with her lifeless child in her arms, Maireldo tried to comfort his spouse but nothing could comfort her from the loss of her child and the stars and the moon listened to her cries and as they shone their light through the window upon the weeping mother and her lifeless baby in her arms.

When the moon shone upon the lifeless body, life returned to the baby's body and she started to scream like never before. Alyamil cried out of happiness and in her joy she named her child: Ithilchen

As the two grew up the twin couldn't be more different, Baravaethor was fierce, strong and hot tempered. His hair was as black as coal and his eyes as fierce as the wildest waters. While Ithilchen was quick and nimble, with oak-dark brown hair and green calm eyes. Though her skin was palest yet fairest of all her kin, the sun couldn't change its colour nor could warmth blush her cheeks.

Though the two couldn't be more different, in their youth they were never apart from one another. As the two shared a special bond, one that could never be broken in life. They were far different from one another though, as Ithilchen was far more fairer then Baravaethor and much more patient and more loved then her twin, who was more brutal and fierce and by his kin he was named "Orchellon". Though he was still as graceful as all the other elves, though he had it less then his kin but even Ithílwen as Baravaethor had flaws they had in common.

They were both extremely stubborn, curious and above all, proud...

Though their father, Maireldo, was a carpenter by trade, his children showed different loves; Baravaethor showed more love for metal and steel unlike his twin, Ithilchen, who loved the forest and often dwelt within them.

Having little talent for the crafting from wood, she learned she had a talent for the bow and arrow. And her father, Maireldo always crafted her new bows to practise with. Though her father was also the leader of Nost en Ithil, a house he had founded for the protection of Mirkwood and was often seen, like both his children armed and wandering through the woods to protect the roads.

At one night, when Maireldo picked up his weapon to hunt the woods with his company. Ithilchen then came to her father with the request that he should stay. But Maireldo laughed and looked at his daughter. 'I always go out on the hunt, as our homes needs to be protected.'

But Ithilchen stopped her father before he could reach the door, saying. 'Father, please remain home with your men, my feeling tells me that the night will not be gentle on you and your company this time...'

Maireldo smiled at his daughter, touched by her concern. 'Do not worry about me, I will be safe with my house, I am not alone in this and we will watch for one another.'

That was all she could have done and with concerned feelings she lets her father out and watched him join his company and ventured into the darkness of the woods. Many moons went by and as Ithilchen and her mother, Alyamil, were sowing clothing, Baravaethor ran in impatient, suggesting that he should look for father. But Alyamil told her son to be patient and assured his father's return.

But those words of comfort were not recieved by both her children and when Alyamil went to bed, both Baravaethor as his twin, Ithilchen, decided to look for thier father and quietly they packed their things and ventured into the darkness of Mirkwood.

After many days of wandering through the woods in search of their father they ended up in the most western part of Mirkwood, where the woods were darkest and they ran out of provisions and when they hunted for food, they stumbled upon orcs, bearing a white hand on their skin and armor.

After an almost hopeless looking battle, Baravaethor and Ithilchen then were captured and the Orc leader laughed and took the elves to their camp at the edge of the forest, there they were put in irons and chains with the others the orcs seemed to have captured. Strange it was that Orcs did not kill their captives, but both Baravaethor as Ithilchen did not know the tongue of Orcs.

Many of the orcs did not bothered with their captives then and it became soon clear what became of their father. As a bunch of Orcs used the armor of their father's house as decorations, plates or used it to smash things. But those orcs who bothered to entertain themselves with their captives laughed when they saw their faces and told them of their father's fates.

The orcs travelled swift as the following day they broke up camp and with their captives they ran south, often they travelled by night and orcs, being canabalistic by nature, soon grew hungry as they grew low on dried meat. With the thought that their "master" would not miss a captive or two they picked out their new meal amongst the captives.

But when the orcs where resting in their camps, they grew bored and often pitted their captives against one another for their own amusement. And soon the woods of Mirkwood where no longer in sight and after many days travel the orcs came to an orc camp, hidden in the shadows of the mountains.

There, an Orc captain greeted them, he was tall, rough looking and he missed one eye. There the captives where put in tiny cages and fear came over Ithilchen as she watched that horrid place, no idea where she was.

There the twin remained for a long time, they endured long nights of torture and they were pitted against their captives even in that camp. As the months grew by, both Ithilchen as Baravaethor saw what the torture did to the rest and because of their connection they repelled the corruption on their mind that would make them more like their capters, the orcs. As they saw that the other captives were being turned into savages, they refused to as they were the most stubborn of elves.

So many moons have gone by that Ithilchen has forgotten about the passing time. She watched as everyone around her withered and died and on one night she looked up at the night sky and she watched the moon shine like a beacon in the dark sky, lighting her face.

It was then on that very night when the orcs returned to camp, empty handed and as Ithilchen watched the orcs return and began to fight amongst one another, like they often did like beasts, she saw her chance as an orc was thrown against her cage. From his belt she managed to grab the key to her freedom and she opened her cage and opened the cage of her brother.

Baravaethor crept out and in a rage he charged at the orcs but Ithilchen grabbed her brother by his arm in an attempt to run to their freedom.

Baravaethor obeyed his sisters pulling for once and they ran for their freedom. But orcs saw their escape too soon and started to chase them. The twin ran through the gates with the orcs right behind them and they ran as fast as their legs could take them but soon the ground has split and a river flowed almost wild beneath their feet.

They turned to watch the Orcs charge at them, they were both unarmed and weary of their captivity and with that no match for a hoarde that was running after them. Baravaethor looked over his shoulder at the river and then at his sister and he pushed her and as she fell down she cried out his name and she fell into the water.
Darkness took her as she heard a cry of her brother and the river pulled her along...

When Ithilchen awoke, she was no longer in the river of Anduin, but in a bed and her wounds have been taken care of. She looked at the golden trees that grew outside the window and when the door of her window opened she saw elves entering and among them was Galadriel who told her that one of her elves found her in the river and brought her there. And then Galadriel listened to the tale of Ithilchen.

There Ithilchen remained, with the elves of Lothlorien for a while till she regained her strength and when she was fully recovered she requested leave from the lady of the dreamwoods. Which Galadriel granted but with words of warning that her brother might be lost to her.

But Ithilchen didn't wish to think of such ill thoughts and she went on her way and she followed the river Anduin till she found the camp where she and her brother where held captive. But when she got there, the camp was deserted and there was no trace of her brother.

Ithilchen cried as she screamed for her brother, but she felt in her heart that he was not dead, and from that she regained hope and went on a search for her brother...