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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Monarchy of the United Kingdom the same gender. The Prime Minister of the United Kingdom, David Cameron, announced at the Commonwealth Heads of Government Meeting 2011 that all 16 Commonwealth realms, including the United Kingdom, had agreed to abolish the gender-preference rule for anyone born after the date of the meeting, 28 October 2011. They also agreed that future monarchs would no longer be prohibited from marrying a Roman Catholic – a law which dated from the Act of Settlement 1701. However, since the monarch is also the Supreme Governor of the Church of England, the law which prohibits a Roman Catholic from acceding to