Aerhíril was born in Rivendell on the 12th of January 1018 years ago. Most of her life she has lived in Imladris with her Adar, his friend, and his son Arthion. The two became good friends since they first met and since then have never been parted for more than a few years at a time. Her mother moved to Lorien for a while, and since then has not moved back to Rivendell due to her relatives being of the Sindar kind. This means that Aerhíril became familiar with travelling quite early in life, and has since spent her time either with her mother or her father in different realms.

After spending the first few years of her life in Rivendell, she then moved to the king’s halls in Mirkwood once she had had enough of life near her parents. She has been through a lot with her friend Arthion, and been with him through some of his most difficult times. Although they have always been friends, as they are very close people often assume that they are involved in a deeper relationship. This was once true, but kept moving from a friendship to a deeper relationship and back again over quite a long period of time. Eventually they both agreed that it would be better to just be friends, and both now think that it was something that they just tried as young elflings.

Now in Mirkwood, Aerhíril goes back to Rivendell as often as she can to see her Adar and friends again. She is often found riding solo on her companion Celeblas.