Succession To The British Throne: Law governing who can become British monarch

At present the first in line is William, Prince of Wales, and then Prince William's eldest child, Prince George of Wales.

Traditionally, males came before females in the line of succession. However, the law changed on 26 March 2015, so at present, for people born after 28 October 2011 the succession is decided only by age: older children come before younger children. This system of inheritance is called absolute primogeniture, as opposed to male-preference primogeniture. When someone who is in line to the throne has a child, that child comes after them and their older children, but before anyone else in the line of succession.

Excluded from the line of succession are Catholics and illegitimate children.

No official, complete version of the line of succession is maintained. The exact number, in more remote collateral lines, of the people who would be eligible is uncertain. In 2001, American genealogist William Addams Reitwiesner compiled a list of 4,973 living descendants of the Electress Sophia in order of succession without omitting Roman Catholics. When updated in January 2011, the list included 5,753.

The annotated list below covers the first part of this line of succession, being limited to descendants of the sons of King George V, King Charles III's great-grandfather. The order of the first twenty-three numbered in the list, all descendants of Queen Elizabeth II, is given on the official website of the British monarchy; other list numbers and exclusions are explained by annotations and footnotes below. People named in italics are unnumbered either because they are deceased or because sources report them to be excluded from the succession.