Initially after the Norman Conquest, England adopted the officers from the Normandy Ducal court (which was modelled after the French court) with a steward, chamberlain and constable. Initially having household and governmental duties, some of these officers later split into two counterparts in Great Officer of the State and officer of the royal household, while other officers were superseded by new officers or absorbed by existing officers. This was due to many of the officers becoming hereditary due to feudalistic practices, and thus removed from the practical operation of either the state or the Royal Household.