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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
Acts of Supremacy monarch as head of the Church and state. Anyone refusing to take the oath could be charged with treason. The use of the term Supreme Governor as opposed to Supreme Head pacified some Roman Catholics and those Protestants concerned about a female leader of the Church of England. Elizabeth, who was a politique, did not prosecute layman nonconformists, or those who did not follow the established rules of the Church of England unless their actions directly undermined the authority of the English monarch, as was the case in the vestments controversy. Thus, it was through the Second Act of Supremacy