This is a list of British princesses from the accession of George I in 1714. This article deals with both princesses of the blood royal and women who become princesses upon marriage.
The use of the title of Princess of the United Kingdom of Great Britain and Northern Ireland is entirely at the will of the sovereign. Individuals holding the title of princess are styled "Her Royal Highness" (HRH). Since George V's Letters Patent of 30 November 1917, the title "Princess" and the use of the style "Royal Highness" has generally been restricted to the following persons:
On 31 December 2012, Elizabeth II issued letters patent enabling all children of the eldest son of the Prince of Wales to enjoy the princely title and style of Royal Highness, as opposed to only the eldest son.
Under the current practice, princesses of the blood royal are the legitimate daughters and the legitimate male line granddaughters of a British Sovereign. They are dynasts, that is potential successors to the throne. For these individuals, the title "Princess of the United Kingdom of Great Britain and Northern Ireland" and the style "Her Royal Highness" is an entitlement for life. The title Princess and the style Royal Highness is prefixed to the Christian name, before another title of honour. From 1714 until 1917, the male-line great granddaughters of the Sovereign were titled "Princess of Great Britain and Ireland" with the style "Highness". Since 1917, the male-line great granddaughters of the Sovereign have held "the style and title enjoyed by the children of dukes". For example, the daughters of the current Duke of Gloucester, a male line grandson of George V, are styled The Lady Davina Lewis and The Lady Rose Gilman.
Princesses by marriage are the recognised wives of the Sovereign's sons and male-line grandsons. Generally, these women are entitled to the style "Royal Highness" by virtue of marriage, and retain the style if widowed. However, Queen Elizabeth II issued Letters Patent dated 21 August 1996 stating that any woman divorced from a Prince of the United Kingdom would no longer be entitled to the style "Royal Highness". This has so far applied to Diana, Princess of Wales, and Sarah, Duchess of York.