The monarchy of the United Kingdom, commonly referred to as the British monarchy, is the form of government used by the United Kingdom by which a hereditary monarch reigns as the head of state, with their powers regulated by the British constitution. The term may also refer to the role of the royal family within the UK's broader political structure. The monarch since 8 September 2022 is King Charles III, who ascended the throne on the death of Queen Elizabeth II, his mother.
The monarch and their immediate family undertake various official, ceremonial, diplomatic and representational duties. Although formally the monarch has authority over the government—which is known as "His/Her Majesty's Government"—this power may only be used according to laws enacted in Parliament and within constraints of convention and precedent. In practice the monarch's role, including that of Head of the Armed Forces, is limited to functions such as bestowing honours and appointing the prime minister, which are performed in a non-partisan manner. The UK Government has called the monarchy "a unique soft power and diplomatic asset". The Crown also occupies a unique cultural role, serving as an unofficial brand ambassador for British interests and values abroad, increasing tourism at home, and promoting charities throughout civil society.
