Question: What is the meaning of the motto of the monochary of the United Kingdom which is commonly referred to as the British monarchy?

Context paragraphs:
The English Constitution: The English Constitution is a book by Walter Bagehot.  First serialised in "The Fortnightly Review" between 15 May 1865 and 1 January 1867, and later published in book form in the latter year.  It explores the constitution of the United Kingdom, specifically the functioning of Parliament and the British monarchy, and the contrasts between British and American government.  The book became a standard work which was translated into several languages.

Monarchy of the United Kingdom: The monarchy of the United Kingdom, commonly referred to as the British monarchy, is the constitutional monarchy of the United Kingdom, its dependencies and its overseas territories.  The current monarch and head of state, Queen Elizabeth II, ascended the throne on the death of her father, King George VI, on 6 February 1952.

Ulster loyalism: Ulster loyalism is a political ideology found primarily among working class Ulster Protestants in Northern Ireland, whose status as a part of the United Kingdom has remained controversial.  Most Ulster Protestants are descendants of settlers from Great Britain in the 17th and 18th centuries.  Like unionists, loyalists are attached to the British monarchy, support the continued existence of Northern Ireland, and oppose a united Ireland.  Ulster loyalism has been described as a kind of ethnic nationalism and "a variation of British nationalism".  It is strongly associated with paramilitarism.

Court Circular: The Court Circular is the official record that lists the engagements carried out by the Monarch of the United Kingdom and the other Commonwealth realms; the Royal Family; and appointments to their staff and to the court.  It is issued by Buckingham Palace and printed a day in arrears at the back of "The Times", "The Daily Telegraph" and "The Scotsman" newspapers.  An archive of the circular back to 1998 is provided on the British monarchy's website.

Commonwealth of Britain Bill: The Commonwealth of Britain Bill was a bill first introduced in 1991 by Tony Benn, then a Labour Member of Parliament in the House of Commons and was seconded by the current Leader of the Labour Party, Jeremy Corbyn.  It proposed abolishing the British monarchy, with the United Kingdom becoming a "democratic, federal and secular Commonwealth of Britain", or in effect a republic with a codified constitution.  It was read in Parliament a number of times until Benn's retirement in 2001, but never achieved a second reading.  Under the Bill:

Republic (political organisation): Republic is a British republican pressure group advocating the replacement of the United Kingdom's monarchy with a republic.  It is a member organisation of Common Cause and the Alliance of European Republican Movements and is currently the only organisation solely campaigning for a republican constitution for Britain.  Republic states that its mission is: "To achieve the abolition of the British monarchy in favour of a democratic republic".  Andrew Child is the current Executive Chair and Graham Smith is the current Chief Executive Officer of Republic.

Commissioner for the British Antarctic Territory: The Commissioner for the British Antarctic Territory (BAT), is the head of government in the Antarctic Territory of the United Kingdom.  As one of the British Overseas Territories, the commissioner is appointed by the British Monarchy, currently Queen Elizabeth II who appoints the commissioner office on the advice of the Foreign and Commonwealth Office.

Dieu et mon droit: Dieu et mon droit (] ), meaning "God and my right", is the motto of the Monarch of the United Kingdom outside Scotland.  It appears on a scroll beneath the shield of the version of the coat of arms of the United Kingdom used outside Scotland.  The motto is said to have first been used by Richard I (1157–1199) as a battle cry and presumed to be a reference to his French ancestry and the divine right of the Monarch to govern.  It was adopted as the royal motto of England by King Henry V (1386–1422) with the phrase "and my right" referring to his claim to the French crown as a descendant of the French who conquered England under William the Conqueror.

Movement Against the Monarchy: The Movement Against the Monarchy, abbreviated and commonly referred to simply as MAM, was an anarchist organisation based in the United Kingdom that engaged in protests against the British monarchy.  The group went into abeyance, following the arrest of 41 members in the aftermath of protests against Queen Elizabeth II's Golden Jubilee in June 2000.

Statue of Oliver Cromwell, Westminster: A statue of Oliver Cromwell stands outside the House of Commons of the United Kingdom in Westminster, London.  It is a sculpture of Oliver Cromwell, Lord Protector of the Commonwealth of England, Scotland and Ireland.  The statue was designed by Hamo Thornycroft and erected in 1899.  It has divided opinion, both before its erection and since, due to Cromwell's opposition to the British monarchy and his role in the conquest of Ireland.  Cromwell stands accused by some of war crimes, religious persecution and ethnic cleansing on a dramatic scale against Catholics in Ireland.

Supporting paragraphs: Dieu et mon droit Monarchy of the United Kingdom
Answer: God and my right