Queen Nancy wished for peace between the warring kingdoms. Her wish was granted when their armies formed an alliance with her husband, the King (whose current status is unknown). However she was also brought down.
It was because of that tragic event that Parasoul decided that she should destroy the Skull Heart so no one could repeat the tragedy her mother met.
- According to a non-canon picture drawn by Alex Ahad of Nancy fighting Selene Contiello, it's possible that Nancy was the previous owner of Krieg prior to Parasoul.