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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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
History of the Puritans under King Charles I great Acts of Parliament had established the place of the Church of England in English life (1) the Act of Supremacy, which declared the monarch to be the Supreme Governor of the Church of England and which imposed an oath on all subjects requiring them to swear that they recognized the royal supremacy in the church; and (2) the Act of Uniformity, which established religious uniformity throughout the country by requiring all churches to conduct services according to the Book of Common Prayer. The events of the 1640s caused the English legal community to worry that the Westminster Assembly was