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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Crown Jewels of the United Kingdom her roles as head of state, Supreme Governor of the Church of England, and head of the British armed forces. They feature heraldic devices and national emblems of England, Scotland, Wales and Northern Ireland, and recent pieces were designed to reflect the monarch's role as Head of the Commonwealth. Use of regalia by monarchs in England can be traced back to medieval times. A permanent set of coronation regalia, once belonging to Edward the Confessor, was established after he was made a saint in the 12th century. By the Tudor period it was usual for a monarch to inherit state