The Sands of Faith
Stephen was a founding member of the Arch-Mage guild. He has long since been a lich, a Rosepierre family secret, and lived in the castle. A ritual by the Arch-mage guild cursed the Rosepierre family and destroyed Stephen. After our heroes got trapped in the castle their only escape was to perform a ritual to resurrect Stephen; which unfortunately brought him and his castle back into the world – and brought the Old Gods a step closer to breaking free of their prison.
Stephen is currently the head of his family and is working to bring the Old Gods back into this world.