Moenbryda was born in Sharlayan, and grew up fascinated by the knowledge that surrounded her and was always eager to learn. Sensing the same draw into the unknown, she sought to befriend Urianger Augurelt, though he ignored her pestering. She didn't give up and eventually the two grew close, and were often found in the Great Gubal Library reading tomes and eating cockatrice meatballs. Once she grew up she studied under Louisoix Leveilleur. After striking a talent in aetheric research she became an Archon and was in the Circle of Knowing, however, Louisoix told her to stay in Sharlayan, an order she followed with great difficulty.
Moenbryda is called in once the Scions try to find a way to pursue Lady Iceheart after she escaped Snowcloak and seemingly cut off or destroyed her destination Aetheryte. Using a crystal of white auracite, Moenbryda traces of Iceheart's teleportation to allow the Warrior of Light pursue her. Akh Afah Amphitheatre becomes within reach where the heretics' primal, Shiva, can be confronted.
Master Louisoix... I understand now...the choice you made... In death...there is life... Farewell, Urianger...you daft old coot...Moenbryda
Moenbryda sacrifices her life so that the Warrior of Light can make a blade of aether to destroy Nabriales.
Moenbryda's death continues to haunt Urianger, who puts off reuniting with her parents when he returns to Sharlayan.
When the Scions of the Seventh Dawn venture into the aetherial sea to speak with Hydaelyn, Moenbryda's soul manifests as her axe and helps to fight off malevolent spirits.
Moenbryda is a Seawolf Roegadyn woman with pale skin and silver hair. She has the Circle of Knowing tattoo on her left thigh, as well as the mark of an Archon on her neck. She wears a blue trench coat with a white hood and a short blue skirt and high boots. She carries a Dual Haken axe.
Moenbryda is voiced by Yu Sugimoto in the Japanese version.
She is voiced by Laura Post in the English version.
In the Roegadyn language, her name translates to "Moon Bride, daughter of Wolf Sun".