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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Elizabeth I of England monarch as its head, but with many Catholic elements, such as vestments. The House of Commons backed the proposals strongly, but the bill of supremacy met opposition in the House of Lords, particularly from the bishops. Elizabeth was fortunate that many bishoprics were vacant at the time, including the Archbishopric of Canterbury. This enabled supporters amongst peers to outvote the bishops and conservative peers. Nevertheless, Elizabeth was forced to accept the title of Supreme Governor of the Church of England rather than the more contentious title of Supreme Head, which many thought unacceptable for a woman to bear. The new