Elizabeth II was the longest-reigning monarch in British history, having overtaken Queen Victoria's record in September 2015. She broke Victoria's record as the oldest monarch in 2007, and was the only nonogenerarian ever to reign.

At the end of her reign, Her Majesty was Queen of 15 independent realms.

As Queen of the United Kingdom, Elizabeth II bore the UK arms which have existed since the accession of Queen Victoria in 1837, but in 195? she reverted to depicting the royal crown with depressed arches (like the actual St.Edward's Crown) rather than the raised arches which had been used since the 1870s (when Queen Victoria was declared Empress of India).

A different coat of arms is used in Scotland, giving precedence to Scotland and using the Scottish crown.

As Princess Elizabeth, the Queen was first granted arms in 1944, consising of the Royal Arms of the UK differenced by a white label of three points, the outer points charged with St.George's Cross and the middle point charged with a Tudor rose. The coronet of the child of a sovereign was used in place of the royal crown. Because she is a woman, Princess Elizabeth placed the arms on a lozenge and did not use helm or crest. She was admitted to the Order of the Garter in November 1947, after which her shield (lozenge) was encircled with the Garter.

Full name: Elizabeth Alexandra Mary of Windsor

Style: Her Majesty The Queen

Formal title (in the UK): Elizabeth the Second, by the Grace of God of the United Kingdom of Great Britain and Northern Ireland and of Her other Realms and Territories, Queen, Head of the Commonwealth, Defender of the Faith (1953-2022);
Elizabeth the Second, by the Grace of God of Great Britain, Ireland, and the British Dominions beyond the Seas, Queen, Defender of the Faith (1952-53);
princess of the United Kingdom (from birth)

Born: 21 April 1926, at 17 Bruton Street, London, SW1

Succeeded to the throne: 6 Feburary 1952

Crowned: 3 June 1953, at Westminster Abbey

Married: At Westminster Abbey, 20 November 1947, to Philip Mountbatten, Duke of Edinburgh

Died: 8 September 2022, at Balmoral, Aberdeenshire

Issue: King Charles III; Anne, Princess Royal; Andrew, Duke of York; Edward, Earl of Wessex.