Royal Household of the United Kingdom includes officials who conduct the private business of the monarch and supervise court life. They have few powers of government. The lord chamberlain supervises the household. The lord steward controls household finances and supervises the treasurer and the comptroller of the household. The master of the horse cares for the royal stables. The queen's chief attendant is the mistress of the robes. She attends the queen on state occasions. The ladies of the bedchamber are the queen's personal attendants. The original household offices, such as marshal, steward, and chamberlain, are hereditary in some families. These officials act only on ceremonial occasions.