Imperial Knights are towering bipedel engines of war that hail from feudal worlds of the Imperium known as Knight Worlds. Each Knight is piloted by a single Noble pilot from within the Throne Mechanicum. Knights which are sworn to the service of the Emperor are known as Questor Imperialis. Knights which are sworn to the Omnissiah are known as Questor Mechanicus. Knights themselves are operated from Knightly Houses located on Knight Worlds. Pilots of Knights are known as Knight Scions.