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 The Oath of Supremacy was originally imposed by King Henry VIII of England through the Act of Supremacy 1534, but repealed by his daughter, Queen Mary I of England and reinstated under Mary's half-sister, Queen Elizabeth I of England under the Act of Supremacy 1559.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 of an English Protestant church, of which she became the Supreme Governor. This Elizabethan Religious Settlement was to evolve into the Church of England. It was expected that Elizabeth would marry and produce an heir, however despite numerous courtships she never did. She was eventually succeeded by her first cousin twice removed, James VI of Scotland. She had earlier been responsible for the imprisonment and execution of James's mother, Mary, Queen of Scots. In government, Elizabeth was more moderate than her father and half-siblings had been. One of her mottoes was ""video et taceo"" ("I see but say nothing"). In