Lord President of the Council in the context of "Balfour Declaration of 1926"

The Privy Council, formally His Majesty's Most Honourable Privy Council, is a formal body of advisers to the sovereign of the United Kingdom. Its members, known as privy counsellors, are mainly senior politicians who are current or former members of either the House of Commons or the House of Lords.

The Privy Council formally advises the sovereign on the exercise of the royal prerogative. The King-in-Council issues executive instruments known as Orders in Council. The Privy Council also holds the delegated authority to issue Orders of Council, mostly used to regulate certain public institutions. It advises the sovereign on the issuing of royal charters, which are used to grant special status to incorporated bodies, and city or borough status to local authorities. Otherwise, the Privy Council's powers have now been largely reserved to its executive committee, the Cabinet of the United Kingdom, which serves as the senior decision-making body of the government. The council is administratively headed by the Lord President of the Council who is a member of the cabinet, and appointed on the advice of the Prime Minister.

The Churchill war ministry was the United Kingdom's unity coalition government for most of the Second World War from 10 May 1940 to 23 May 1945. It was led by Winston Churchill, who was appointed prime minister of the United Kingdom by King George VI following the resignation of Neville Chamberlain in the aftermath of the Norway Debate.

At the outset, Churchill formed a five-man war cabinet which included Chamberlain as Lord President of the Council, Clement Attlee as Lord Privy Seal and later as Deputy Prime Minister, Viscount Halifax as Foreign Secretary, and Arthur Greenwood as a minister without portfolio. Although the original war cabinet was limited to five members, in practice they were augmented by the service chiefs and ministers who attended the majority of meetings. The cabinet changed in size and membership as the war progressed but there were significant additions later in 1940 when it was increased to eight after Churchill, Attlee, and Greenwood were joined by Ernest Bevin as Minister of Labour and National Service; Anthony Eden as Foreign Secretary, replacing Halifax who was sent to Washington as Ambassador to the United States; Lord Beaverbrook as Minister of Aircraft Production; Sir Kingsley Wood as Chancellor of the Exchequer; and Sir John Anderson as Lord President of the Council, replacing Chamberlain who died in November (Anderson later became chancellor following Wood's death in September 1943).

The leader of the House of Lords is a member of the Cabinet of the United Kingdom who is responsible for arranging government business in the House of Lords. ("Government" here means the controlling faction of the parliament, headed by the Prime Minister.) The post is also the leader of the governing party in the House of Lords who acts as the government party chairperson in the house. The role is always held in combination with a formal Cabinet position, usually one of the sinecure offices of Lord President of the Council, Lord Keeper of the Privy Seal or Chancellor of the Duchy of Lancaster. Unless the Leader is also a departmental minister, being Leader constitutes the bulk of their government responsibilities, but it has never been an independent salaried office. The Office of the Leader of the House of Lords is a ministerial department.

Though the leader of the House is a member of the cabinet and remains a partisan figure, the leader also has responsibilities to the House as a whole. In contrast to the House of Commons, where proceedings are controlled by the speaker, proceedings in the Lords are controlled by peers themselves, under the rules set out in the Standing Orders. The leader of the House has the responsibility of reminding the House of these rules and facilitating the Lords' self-regulation, though any member may draw attention to breaches of order or failure to observe customs. The Leader is often called upon to advise on procedures and points of order and is required to determine the order of speakers on Supplementary Questions, subject to the wishes of the House. However, like the Lord Speaker, the Leader of the House has no power to rule on points of order or to intervene during an inappropriate speech.

The Lord Privy Seal (or, more formally, the Lord Keeper of the Privy Seal) is the fifth of the Great Officers of State in the United Kingdom, ranking beneath the Lord President of the Council and above the Lord Great Chamberlain. Originally, its holder was responsible for the monarch's personal (privy) seal (as opposed to the Great Seal of the Realm, which is in the care of the lord chancellor) until the use of such a seal became obsolete. Though one of the oldest offices in European governments, it has no particular function today because the use of a privy seal has been obsolete for centuries; it may be regarded as a traditional sinecure, but today, the holder of the office is invariably given a seat in the Cabinet of the United Kingdom, and is sometimes referred to as a minister without portfolio.

Since the premiership of Clement Attlee, the position of Lord Privy Seal has frequently been combined with that of leader of the House of Lords or leader of the House of Commons. The office of Lord Privy Seal, unlike those of leader of the Lords or Commons, is eligible for a ministerial salary under the Ministerial and Other Salaries Act 1975. The office does not confer membership of the House of Lords, leading to Ernest Bevin's remark on holding this office that he was "neither a Lord, nor a Privy, nor a Seal".

Marquess Camden is a title in the Peerage of the United Kingdom. It was created in 1812 for the politician John Pratt, 2nd Earl Camden. The Pratt family descends from Sir John Pratt, Lord Chief Justice from 1718 to 1725. His third son from his second marriage, Sir Charles Pratt, was also a prominent lawyer and politician and served as Lord Chancellor between 1766 and 1770. In 1765 he was raised to the Peerage of Great Britain as Baron Camden, of Camden Place in the County of Kent, and in 1786 he was further honoured when he was created Viscount Bayham, of Bayham Abbey in the County of Kent, and Earl Camden. These titles are also in the Peerage of Great Britain. Lord Camden was married to Elizabeth, daughter of Nicholas Jeffreys, of The Priory, Brecknockshire, in Wales.

Their son, the second Earl, was a politician and notably served as Lord Lieutenant of Ireland and as Lord President of the Council. In 1812 he was created Earl of the County of Brecknock (usually shortened to Earl of Brecknock) and Marquess Camden. His son, the second Marquess, represented Ludgershall, Bath and Dunwich in the House of Commons and also served as Lord Lieutenant of Brecknockshire. In 1835 Lord Camden was called to the House of Lords through a writ of acceleration in his father's junior title of Baron Camden. His son, the third Marquess, briefly sat as a Member of Parliament for Brecon in 1866, before he succeeded his father and took his seat in the House of Lords. On his early death, the titles passed to his three-month-old son, the fourth Marquess. He was notably Lord Lieutenant of Kent from 1905 to 1943. As of 2017 the peerages are held by his grandson, the sixth Marquess, who succeeded his father in 1983.

John Sheffield, 1st Duke of Buckingham and Normanby (8 September 1647 – 24 February 1721) was a British military officer, writer and Tory politician who served as Lord Privy Seal and Lord President of the Council. He was also known by his original title, Lord Mulgrave.