Tresa Arkon

Tresa Arkon is the fourth child of Arkon, known for her wicked temper and perceived instability. In reality she's quite normal but has a penchant for witchcraft, specifically necromancy and disease. Her morbid curiosities and enthusiasm for death and decay as a natural stage of life gives her an air of being seen as insane. Despite this her capabilities are near limitless if she gathers enough unfortunate souls to her power source.
Her son, Lazarus Arkon, is her lieutenant and her keeper. They have an incestuous relationship, but it's so she can use a powerful sexually transmitted spell to keep him under control for the most part. Otherwise he'd be a danger to the family and be put down for a number of reasons. Beyond this, she simply enjoys having her son on a leash, and uses it to great advantage during disagreements.
She is a General of Arkon, and while she is outwardly seen as unstable and maddened, she's a cunning witch with powers stemming from the power of souls, she is a very dangerous opponent.