Isolde is the matriarch of the ir'Nolin family, a half-elven noble family in Aundair that owns land and has an estate in and around Passage.
Isolde and Matis ir'Nolin are known within Passage for their love of horses, the couple have been breeding horses for their stables for decades. For a while they even had a warhorse that they believed to be of Valenar heritage, Antaeranor. Unfortunately, Antaeranor was killed and dismembered by Starling d'Vadalis's griffon Sunfeather, causing the ir'Nolins to seek restitution from House Vadalis.