On April 25, 2013, Royal Assent was given to the Succession to The Crown Act 2013. After finally receiving approval in the various realms, the Act formally went into effect on March 26, 2015. The Act puts in place absolute primogeniture, which means the eldest child born becomes the heir to his or her parent, regardless of gender. This is retroactive to those born after October 28, 2011.
Another change affects those in the Line of Succession who married a Roman Catholic. Before the Succession to The Crown Act 2013 went into effect, those in the Line of Succession to the British throne who married a Roman Catholic lost their rights to succession. However, under the terms of the Act, this is no longer the case. Marriage to a Roman Catholic no longer excludes anyone. As this change is retroactive, those who were removed due to their marriages to a Roman Catholic were reinstated. Of the extended British Royal Family, George Windsor, Earl of St. Andrews and HRH Prince Michael of Kent were returned to the line of succession. However, the provision of the Act of Settlement 1701 prohibiting the monarch from being a Roman Catholic continues. Therefore, all Roman Catholics and those who convert to Roman Catholicism lose their succession rights.
There are some other changes that do not directly deal with the line of succession. You can read more about them here: Wikipedia: Succession to the Crown Act 2013.
More information about the succession can be seen at The Official Website of the British Monarchy at https://www.royal.uk/succession and at Wikipedia: Line of Succession to the British Throne.
For more information about the British Royal Family, past and present, see Unofficial Royalty: British Index.
King Charles III is the current monarch of the United Kingdom. He is the eldest son of Queen Elizabeth II, who was the elder daughter of King George VI.
This succession list contains only the descendants of Queen Elizabeth II.
The current order of succession is:
01. HRH The Prince William, The Prince of Wales (1982), elder son of HM King Charles III
02. HRH Prince George of Wales (2013), eldest child of HRH The Prince William, Prince of Wales
03. HRH Princess Charlotte of Wales (2015), second child of HRH Prince William, Prince of Wales
04. HRH Prince Louis of Wales (2018), third child of HRH Prince William, Prince of Wales
05. HRH The Prince Henry (Harry), The Duke of Sussex (1984), younger son of HM King Charles III
06. HRH Prince Archie of Sussex (2019), elder child of HRH The Prince Henry (Harry), The Duke of Sussex
07. HRH Princess Lilibet of Sussex (2021), second child of HRH The Prince Henry (Harry), The Duke of Sussex
08. HRH The Prince Andrew, The Duke of York (1960), second son of HM Queen Elizabeth II
09. HRH Princess Beatrice, Mrs. Edoardo Mapelli Mozzi (1988), elder daughter of HRH The Prince Andrew, The Duke of York
10. Sienna Elizabeth Mapelli Mozzi (2021), child of HRH Princess Beatrice
11. HRH Princess Eugenie, Mrs. Jack Brooksbank (1990), younger daughter of HRH The Prince Andrew, The Duke of York
12. August Philip Hawke Brooksbank (2021), elder child of HRH Princess Eugenie
13. Ernest George Ronnie Brooksbank (2023), seond child of HRH Princess Eugenie
14. HRH The Prince Edward, The Duke of Edinburgh (1964), third son of HM Queen Elizabeth II
15. James Mountbatten-Windsor, Earl of Wessex (2007), son of HRH The Prince Edward, The Duke of Edinburgh
16. Lady Louise Mountbatten-Windsor (2003), daughter of HRH The Prince Edward, The Duke of Edinburgh
17. HRH The Princess Anne, The Princess Royal (1950), daughter of HM Queen Elizabeth II
18. Peter Phillips (1977), son of HRH The Princess Anne, The Princess Royal
19. Savannah Phillips (2010), elder child of Peter Phillips
20. Isla Phillips (2012), second child of Peter Phillips
21. Zara Tindall (1981), daughter of HRH The Princess Anne, The Princess Royal
22. Mia Tindall (2014), elder child of Zara Tindall
23. Lena Tindall (2018), second child of Zara Tindall
24. Lucas Tindall (2021), third child of Zara Tindall