Oath of Supremacy Oath of Supremacy The Oath of Supremacy required any person taking public or church office in England to swear allegiance to the monarch as Supreme Governor of the Church of England. Failure to do so was to be treated as treasonable. The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559. The Oath was later extended to include Members of Parliament and people studying at
Separation of church and state Islam. The Church of England, a part of the worldwide Anglican Communion, is an established church, and the British Sovereign is the titular Supreme Governor, and cannot be a Roman Catholic. Until the Succession to the Crown Act 2013, the monarch could not be married to a Catholic. In state-run schools in England, Wales and Northern Ireland (but not in privately run schools), there is a requirement for a daily act of worship that is "wholly or mainly of a Christian character", although non-Christian faith schools are exempt (instead having to have their own form of worship) and sixth-form pupils