Castle of the Wasteland

This castle my keep bound imprisoned in my endless sleep cast then thy gaze upon me and despair across the barren wastelands of tundra hear my eternal mantra "..better to rule..than to serve" In this hollow place stand I in this mocking light meanest thou to bend me to thy will Father of forgotten rites Thy will be done in all but one Cast out but not ashamed Do I care who is to blame Taunt me then with your pultry light Freedom won in this flight Can you now guess my name?