The origins of this forsaken knight are lost in time. The only knowledge that locals know is that this knight was honorable at the time of her knighthood and the time she served for her kingdom.
The female knight was strong but not wise. According to some whispers around taverns and the local populous is that she met a witch and asked for eternal power.
No one knows what the witch said to the lady knight and what she would lose in gaining these powers. But whenever an adventurer meets the deadly remnants of this powerful knight they are cast into endless darkness. Not even the stars are visible when confronted by this aperistion.