Slim, bordering on skinny, MatronQuavyl is a conservative, very devout drow. Her hair is kept long and she shuns complicated hairdos, in the manner of many other especially devout women.
She strongly disapproves of anything changing, especially so in religious matters. The fact that even in this very static city, change nevertheless takes place, albeit slowly maker her a testy, angry and easily offended Matron.
Much to her shame, the first woman to spring from her womb has no talent whatsoever for matters religious.
Even worse, her sons are all wizards so Matron Quavyl needs Ioria in her role as weaponsmaster. This does nothing to make their relationship less tense.
But she would not be Matron Quavyl, if she did not take this as trials sent by Lolth. All glory be to the Goddess!