Her character is introduced to the group by capturing them in a trap (physical) and making them beg for their lives, freedom and food.
At the time the rest of the group was powerful enough to defeat the dragon that devastated her town but yet we had to beg for our release from her and she was the same level the other 6 players were.
Never were any of us so much as asked about this history, and taking that kind of tact towards the other players just isn't cool unless it's cool with them....