Monarchy of Saint Kitts and Nevis

The Balfour Declaration of 1926 provided the dominions the right to be considered equal to Britain, rather than subordinate; an agreement that had the result of, in theory, a shared Crown that operates independently in each realm rather than a unitary British Crown under which all the dominions were secondary. The Monarchy thus ceased to be an exclusively British institution, although it has often been called "British" since this time (in both legal and common language) for reasons historical, legal, and of convenience. The Royal and Parliamentary Titles Act 1927 was the first indication of this shift in law, further elaborated in the Statute of Westminster 1931.

Under the Statute of Westminster, Saint Kitts and Nevis has a common monarchy with Britain and the other Commonwealth realms, and though laws governing the line of succession to the Saint Kitts and Nevis throne lie within the control of the Saint Kitts and Nevis Parliament, Saint Kitts and Nevis cannot change the rules of succession without the unanimous consent of the other realms, unless explicitly leaving the shared monarchy relationship by means of a constitutional amendment. This situation applies symmetrically in all the other realms, including the UK.

On all matters of the Saint Kitts and Nevis State, the Monarch is advised solely by Saint Kitts and Nevis ministers.

In Saint Kitts and Nevis, the Queen's official title is: Elizabeth the Second, by the Grace of God, Queen of Saint Christopher and Nevis and of Her other Realms and Territories, Head of the Commonwealth.

This style communicates Saint Kitts and Nevis's status as an independent monarchy, highlighting the Monarch's role specifically as Queen of Saint Kitts and Nevis, as well as the shared aspect of the Crown throughout the realms. Typically, the Sovereign is styled "Queen of Saint Kitts and Nevis," and is addressed as such when in Saint Kitts and Nevis, or performing duties on behalf of Saint Kitts and Nevis abroad.

Most of the Queen's domestic duties are performed by the Governor General. The Governor-General represents the Queen on ceremonial occasions such as the opening of Parliament, the presentation of honours and military parades. Under the Constitution, he is given authority to act in some matters, for example in appointing and disciplining officers of the civil service, in proroguing Parliament. As in the other Commonwealth realms, however, the Monarch's role, and thereby the vice-regent's role, is almost entirely symbolic and cultural, acting as a symbol of the legal authority under which all governments operate, and the powers that are constitutionally hers are exercised almost wholly upon the advice of the Cabinet, made up of Ministers of the Crown. It has been said since the death of Queen Anne in 1714, the last monarch to head the British cabinet, that the monarch "reigns" but does not "rule". In exceptional circumstances, however, the Monarch or vice-regal can act against such advice based upon his or her reserve powers.

There are also a few duties which must be specifically performed by, or bills that require assent by the Queen. These include: signing the appointment papers of Governors General, the confirmation of awards of honours, and approving any change in her title.

It is also possible that if the Governor General decided to go against the Prime Minister's or the government's advice, the Prime Minister could appeal directly to the Monarch, or even recommend that the Monarch dismiss the Governor General.

Charles, Prince of Wales, the current heir to the throne of Saint Kitts and Nevis

Succession to the throne is by absolute primogeniture, and governed by the provisions of the Succession to the Crown Bill that was passed 8 July 2013[7] in accordance with the Perth Agreement. Previously succession had been governed by the Act of Settlement and English Bill of Rights. originally passed by the Parliament of England.

This legislation lays out the rules that the Monarch cannot be a Roman Catholic, and must be in communion with the Church of England upon ascending the throne. As Saint Kitts and Nevis's laws governing succession are currently identical to those of the United Kingdom (by the Statute of Westminster) see Succession to the British Throne for more information.

The heir apparent is Elizabeth II's eldest son, Charles, who has no official title outside of the UK, but is accorded his UK title, Prince of Wales, as a courtesy title.