Introduction:
King of Britain, King/Queen of Britain, hereditary head of state stipulated in the British Constitution, part of the legislature, president of the court, commander-in-chief of all armed forces in the United Kingdom, secular leader of the Anglican Church and head of the Commonwealth.
The current king of England is Her Majesty Queen Elizabeth II, formerly known as elizabeth alexandra mary windsor, whose full name is "King of England and other territories and possessions, head of the Commonwealth and defender of the Anglican Church". He is currently the British monarch, the head of state of Britain, the Commonwealth and 15 member countries, and the supreme leader of the Church of China.
Elizabeth Alexandra Mary Windsor