In the United Kingdom, the Lord Great Chamberlain is the sixth of the Great Officers of State (not to be confused with the Great Offices of State), ranking beneath the Lord Privy Seal and above the Lord High Constable. The Lord Great Chamberlain has charge over the Palace of Westminster (though since the 1960s his personal authority has been limited to the royal apartments and Westminster Hall).
On formal state occasions, he wears a distinctive scarlet court uniform and bears a gold key and a white stave as the insignia of his office.
The position is a hereditary one, held since 1780 in gross. At any one time, a single person actually exercises the office of Lord Great Chamberlain. The various individuals who hold fractions of the Lord Great Chamberlainship are technically each Joint Hereditary Lord Great Chamberlain, and the right to exercise the office for a given reign rotates proportionately to the fraction of the office held. For instance, the Marquesses of Cholmondeley hold one-half of the office, and may therefore exercise the office or appoint a deputy every alternate reign. (A Deputy Lord Great Chamberlain is a person exercising the office who is not personally a co-heir to the office; historically these have been sons or husbands of co-heirs as the office has never been exercised by a woman, as women were barred from sitting in the Lords until the present reign).
The office of Lord Great Chamberlain is distinct from the non-hereditary office of Lord Chamberlain of the Household, a position in the monarch's household. This office arose in the 14th century as a deputy of the Lord Great Chamberlain to fulfil the latter's duties in the Royal Household, but now they are quite distinct.
The House of Lords Act 1999 removed the automatic right of hereditary peers to sit in the House of Lords, but the Act provided that a hereditary peer exercising the office of Lord Great Chamberlain (as well as the Earl Marshal) be exempt from such a rule, in order to perform ceremonial functions.
Lord Great Chamberlain Wikipedia
The office was originally held by Robert Malet, a son of one of the leading companions of William the Conqueror. In 1133, however, King Henry I declared Malet's estates and titles forfeit, and awarded the office of Lord Great Chamberlain to Aubrey de Vere, whose son was created Earl of Oxford. Thereafter, the Earls of Oxford held the title almost continuously until 1526, with a few intermissions due to the forfeiture of some Earls for treason. In 1526, however, the fourteenth Earl of Oxford died, leaving his aunts as his heirs. The earldom was inherited by a more distant heir-male, his second cousin. The Sovereign then decreed that the office belonged to The Crown, and was not transmitted along with the earldom. The Sovereign appointed the fifteenth Earl to the office, but the appointment was deemed for life and was not heritable. The family's association with the office was interrupted in 1540, when the fifteenth earl died and Thomas Cromwell, the King's chief adviser, was appointed Lord Great Chamberlain. After Cromwell's attainder and execution later the same year, the office passed through a few more court figures, until 1553, when it was passed back to the De Vere family, the sixteenth Earl of Oxford, again as an uninheritable life appointment. Later, Queen Mary I ruled that the Earls of Oxford were indeed entitled to the office of Lord Great Chamberlain on an hereditary basis.
Thus, the sixteenth, seventeenth and eighteenth Earls of Oxford held the position on a hereditary basis until 1626, when the eighteenth Earl died, again leaving a distant relative as heir male, but a closer one as a female heir. The House of Lords eventually ruled that the office belonged to the heir male, Robert Bertie, 14th Baron Willoughby de Eresby, who later became Earl of Lindsey. The office remained vested in the Earls of Lindsey, who later became Dukes of Ancaster and Kesteven. In 1779, however, the fourth Duke of Ancaster and Kesteven died, leaving two sisters as female heirs, and an uncle as an heir male. The uncle became the fifth and last Duke, but the House of Lords ruled that the two sisters were jointly Lord Great Chamberlain and could appoint a Deputy to fulfil the functions of the office. The barony of Willoughby de Eresby went into abeyance between the two sisters, but the Sovereign terminated the abeyance and granted the title to the elder sister, Priscilla Bertie, 21st Baroness Willoughby de Eresby. The younger sister later married the first Marquess of Cholmondeley. The office of Lord Great Chamberlain, however, was divided between Priscilla and her younger sister Georgiana. Priscilla's share was eventually split between two of her granddaughters, and has been split several more times since then. By contrast, Georgiana's share has been inherited by a single male heir each time; that individual has in each case been the Marquess of Cholmondeley, a title created for Georgiana's husband.
The Lord Great Chamberlain also has a major part to play in royal coronations, having the right to dress the monarch on coronation day and to serve the monarch water before and after the coronation banquet, and also being involved in investing the monarch with the insignia of rule.
The fractions show the holder's share in the office, and the date they held it. The current (as of 2015) holders of the office are shown in bold face.