Working With The English Line Of Succession
I spend more time than I should thinking about the line of succession. It comes up in legal documents, genealogy projects, and occasionally when people try to write period dramas. Most of the confusion stems from people treating it like a straightforward family tree when it is actually a set of legal filters applied to one. The line of succession determines who becomes monarch when the current sovereign dies or abdicates. It is not based purely on birth order. The governing rules come from several statutes, primarily the Act of Settlement 1701, the Bill of Rights 1689, and the Succession to the Crown Act 2013. There is also the Royal Marriages Act 1772, though that has been largely superseded for most modern purposes by later legislation. The core mechanism is simple. You start with the current monarch. You list all their legitimate descendants in order of proximity, applying certain disqualifications along the way. Then you move to the next eligible branch of the royal family. The 2013 Act changed the rules for people born after October 28, 2011, removing male-preference primogeniture. Before that date, a younger brother would rank ahead of an older sister. After that date, birth order is strictly by date of birth regardless of sex.
Here is what most people miss when they first look at this. The line is not static. It changes every time a royal child is born because every birth shifts positions for everyone further down the list. When Prince Louis was born in 2018, he inserted himself between Charlotte and George in terms of position, even though he is the youngest. People tend to forget that the list is a snapshot in time, not a permanent record.
How To Determine Your Position In The Line
If you are trying to figure out where someone sits in the line, here is the practical process I use. First, establish the current reigning monarch. Then trace the legitimate line of descent from the monarch's closest ancestors who were eligible under the relevant statutes. You work downward generation by generation. Within each generation, you apply the following filters in order: Disqualification due to Catholicism. Anyone who is a Roman Catholic is excluded. Anyone who marries a Roman Catholic is also excluded. This is under the Act of Settlement and has not changed. It is one of the reasons the line jumps around in ways that seem counterintuitive at first glance.
Get the Full Details

Primogeniture rules. For those born before October 28, 2011, males still take precedence over females in the same generation. For those born after that date, the eldest child comes first regardless of gender. This is under the Succession to the Crown Act 2013. Legitimacy. Only legitimate descendants count. This means children born out of wedlock are excluded unless the relevant parent was married at the time of the child's birth or subsequently. The Legitimacy Act 1976 and later amendments have muddied this in some cases, but for succession purposes, legitimacy traces back to the parents' marriage status at the time of birth. Once you have filtered through all of that, you order the remaining people by closeness of blood relationship to the monarch. The child comes before the grandchild. A son comes before a daughter in pre-2011 births. Cousins rank by which branch of the family they descend from and where their common ancestor sits in the line.
A Problem I Ran Into Recently
Last year I was helping someone research their family connections to a claim about the line of succession. They had found an old document referencing a distant cousin on the Welsh side and wanted to know where that person would rank. The problem was that the document was from the 1890s and referenced a title that had been created and later forfeited. The forfeiture affected succession rights in a way that the online charts did not capture. Most public charts of the line of succession stop at the grandchildren and great-grandchildren of the current monarch. They do not show the full line going back through all the collateral branches. When I needed to find the actual ranking, I had to go to the London Gazette archives and look up the original patent documents for the titles involved. The key was finding the exact date of the forfeiture and whether it included a special remainder that excluded certain descendants. Without that paperwork, any answer I gave would have been wrong. The workaround was to trace the lineage through the male line back to a known eligible ancestor, then verify each connection against primary source documents rather than relying on secondary genealogy websites. It took about three days of research for what should have been a straightforward lookup. I ended up using the National Archives catalogue and cross-referencing with Burke's Peerage for the relevant generations. That process gave me the confirmation I needed within a couple of hours of actual document review once I found the right entry.
Common Mistakes People Make
The biggest mistake is assuming that the line of succession works like a simple family tree. It does not. The religious disqualification alone causes frequent errors. People see a royal cousin who married a Catholic and assume they are still in the line. They are not. The exclusion is automatic and immediate upon marriage, not something that requires a formal declaration. Another common error is treating the 2013 Act as if it changed the entire system. It only changed the primogeniture rule for those born after its effective date. It did not retroactively remove Catholics from the line, and it did not change the basic structure of how succession works. Someone born in 2005 who is female would still rank behind their younger male sibling if that sibling was also born before October 2011, because the male-preference rule still applied to them at birth. A third mistake involves the difference between the English line and the broader British and Commonwealth lines. The succession is unified across all realms, but there are theoretical complications if a realm were to adopt a different line independently. This has not happened, but it is worth understanding that the current system assumes a single shared line across all Commonwealth realms.

English Line Of Succession Current Positioning
The current line is straightforward for the first ten or so positions. The Prince of Wales comes first as heir apparent. He is followed by his children in birth order: Prince George, Princess Charlotte, and Prince Louis. Next is Prince Harry, Duke of Sussex, followed by his children Archie and Lilibet. Then comes Prince William's younger brother Prince Harry's branch, and after that you move into the descendants of the Queen's other siblings and cousins. People often ask about the position of the Queen's cousins or the descendants of Princess Margaret. The answer depends on which branch you are looking at. The descendants of Princess Margaret are further down because they descend from a younger sister of the current sovereign's parent, while the line goes through the senior branch first. This is why you will sometimes see confusion about whether someone from the Mountbatten-Windsor side ranks ahead of a descendant of the Spencer family. The answer is usually no, because the Spencer line comes through a different and more distant royal ancestor.
Where The System Breaks Down
The line of succession is not a reliable tool for determining inheritance of titles or property in most cases. Those follow different rules, often involving or special remainders attached to specific peerage creations. Confusing succession to the Crown with succession to a dukedom or earldom is a frequent source of error. The Crown descends according to statute and common law principles that are distinct from how hereditary titles work. Another limitation is that the line does not account for practical political reality. If the monarch were to die without any eligible heirs, the throne would pass to the nearest eligible ancestor's line, which could theoretically mean a complete shift in the ruling house. This is why the Act of Settlement was written the way it was, to ensure a Protestant succession, but it also means the line can jump in unexpected ways if a major branch dies out. The system also does not provide a mechanism for someone to renounce their place in line. A royal can publicly state they do not wish to be monarch, but that does not legally remove them from the succession. Any change would require an Act of Parliament. This came up during the wedding preparations for Prince Harry and Meghan Markle, when there was speculation about whether Harry's position might change. It did not, because his place in line is determined by statute and birth, not by personal preference.
Resources That Actually Work
If you need to look up current positions, the official Royal.uk website publishes the line, but it only shows a limited number of positions. For the full line, you need more detailed sources. Burke's Peerage and the Official Roll of the Baronetage remain the most authoritative printed references. Online, the BBC and Reuters maintain updated lists, but they do not always reflect the most recent births or marriages quickly enough for precise work. For legal and historical accuracy, the UK Parliament website has the text of all relevant statutes. The National Archives holds the original patents and proclamations. If you are doing this for a professional purpose, budget time to check primary sources rather than relying on the popular charts that circulate online. They are useful for general reference but insufficient for anything that requires precision. The line of succession is one of those topics that looks simple from the outside and reveals enough complications to keep people busy for years. The statutes are clear in their intent, but the application requires careful attention to dates, marriages, and the exact wording of each relevant act. If you are working on something that depends on it, take the time to verify each step rather than assuming the published lists are complete.
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