Isla Campbell reads the constitutional fine print that most coverage of the ceremony skipped entirely
Coverage of the coronation focused overwhelmingly on ceremony, pageantry and the specific historical objects involved, and understandably so, since these are the elements that translate into compelling broadcast footage. What received considerably less attention, both at the time and in the years since, is the actual legal and constitutional substance of the oath itself, which remains one of the clearest statements of the limits and obligations attached to the role.
The Oath Is a Legal Document, Not Only a Ceremonial One
The Coronation Oath derives from the Coronation Oath Act 1688, passed in the immediate aftermath of the Glorious Revolution specifically to establish that the monarch’s authority derives from and is constrained by law and by Parliament, rather than existing independently of them. This is not a historical footnote. It is the legal foundation for the entire modern constitutional settlement between crown and Parliament, and the oath’s specific wording, largely unchanged since 1689, still governs the relationship.
The monarch swears to govern the peoples of the relevant realms according to their respective laws and customs, to cause law and justice to be executed in all judgements with mercy, and to maintain the laws of God and the true profession of the Gospel, a formulation that has required careful modern interpretation given the multi-faith and secular character of contemporary Britain, interpretation that the last coronation addressed through additional, non-statutory acknowledgements of other faith communities alongside the historic oath itself.
The full text of the Coronation Oath Act and its legislative history is available through the UK Government’s legislation archive, and constitutional analysis of the monarch’s role and its legal limits is published by the Institute for Government.
The Oath Says Almost Nothing About What Modern Commentary Assumes It Does
A great deal of public discussion around the monarchy assumes the sovereign possesses reserve powers of genuine political consequence, held in abeyance but available in extremity. The oath itself, read alongside the broader body of constitutional convention that has developed since, actually describes a role considerably more constrained than this popular assumption suggests.
The monarch’s role in government functions almost entirely through the advice of ministers, a convention established gradually since the eighteenth century and now considered as binding as any statute despite not being formally codified as one. The prerogative powers nominally vested in the crown, including the power to appoint a prime minister, to dissolve Parliament, and to grant royal assent to legislation, are in practice exercised entirely according to established convention rather than personal judgement, to the point where deviation from convention would itself constitute a constitutional crisis rather than a legitimate exercise of monarchical discretion.
The Genuinely Live Constitutional Questions Sit Elsewhere
Where meaningful constitutional debate does exist, it concerns edge cases the convention was never fully designed to resolve cleanly: what happens in a genuinely hung parliament where the identity of a viable prime minister is unclear, and whether the monarch retains any residual personal discretion in that scenario. Constitutional scholars remain divided on precisely how much latitude exists here, and it is one of the few areas where the monarch’s personal judgement could, in a sufficiently unusual scenario, become directly and controversially relevant.
Academic and parliamentary analysis of these residual prerogative questions is documented through the UCL Constitution Unit, whose research has examined precisely this category of unresolved convention in detail.
What the Oath’s Framers Actually Achieved
- They established, definitively, that the monarch rules through and subject to law, not above or independent of it, a principle that remains the bedrock of the entire modern arrangement.
- They created a formula flexible enough to be reinterpreted across three and a half centuries without requiring wholesale legislative replacement.
- They left genuinely difficult edge cases, particularly around a contested succession of power in Parliament, without fully resolved answers, questions that remain live rather than settled.
- They embedded religious language that has required increasingly careful contemporary handling as British society has become more religiously diverse and more secular simultaneously.
Why This Matters Beyond Constitutional Trivia
Understanding what the oath actually commits the monarch to, rather than what popular assumption imagines it does, matters directly for how the public evaluates the institution’s role. A monarchy genuinely holding significant reserve political power would warrant a different level of democratic scrutiny than one whose functions are, by long-established convention, almost entirely ceremonial and advisory. The evidence points clearly toward the latter, though the ceremonial language of the oath itself does little to communicate this to a viewing public naturally drawn to spectacle over substance.
The gap between formal grandeur and actual constrained function recurs elsewhere in British public life too, as covered in this piece on administrative expansion substituting for genuine structural reform, and in this account of a minor incident assessed under an unexpectedly heavyweight legal category.
I put this specific question to a constitutional historian I’ve interviewed twice before for other pieces, and her view was that the ambiguity is less an oversight than a deliberate feature, since a fully codified answer to every hung-parliament scenario would itself require Parliament to legislate away a flexibility it has, so far, preferred to retain unwritten.
Further reading and my full archive at my columns filed at The London Prat, and related coverage at the gathered UK press file.
SOURCE: https://bohiney.com/
