Why is he Charles III?
Despite six earlier monarchs named Charles in various kingdoms, King Charles III is only the third recognized English monarch with that name. This explorer shows why the numbers don't add up.
Quick facts: Edward I skipped 'Edward II' in Ireland. James I was James VI of Scotland. Charles I was the sole undisputed Charles of England.
Select a monarch to explore
View reign details, lineage, and naming context
Charles III
IIIReign: 2022-present
Born: 1948
Parents: Elizabeth II & Philip, Duke of Edinburgh
Charles III is the current monarch of the United Kingdom and 14 other Commonwealth realms. His accession followed the death of his mother, Queen Elizabeth II, on September 8, 2022.
Ancestral line
Regional naming comparison
| Region | Charles(s) ruled | Regnal number |
|---|---|---|
| England | Charles I, Charles III | I, III |
| Charles I | I | |
| Ireland | Charles II | II |
Common questions this explorer answers
Why isn't Charles III the eighth Charles?
Previous Charleses ruled different kingdoms or had contested legitimacy. Charles I of England is the only undisputed first Charles of England.
How do monarch names get chosen?
Names often honor saints, previous rulers, or family members. Coronations publicly set the regnal number, but earlier uses may exist in other kingdoms.
What about Scottish kings?
Scottish crowns used different numbering. James VI of Scotland became James I of England in 1603, creating parallel systems.
Frequently asked questions
How is a regnal number determined?
The monarch selects their regnal name at coronation. The number reflects previous monarchs of the same name in the same kingdom. Different kingdoms within the British Isles had separate numbering systems until the 1707 union.
Why do Irish titles sometimes differ?
Before 1801, Ireland had its own crown with separate titling traditions. Some monarchs used different numbers in Irish versus English contexts. This created confusion when researching historical records.
Can I save or share my exploration?
Yes. Click the share button to copy a permalink with your current monarch selected. You can also print this page or export the lineage as SVG for use in documents.