Dom John Placid Adelham

Also known as

  • Placidus Adelham
  • Placidus Adland


Protestant minister who converted to Catholicism and became a Benedictine monk, making his profession in 1652 at Saint Edward’s monastery in Paris, France. Prior of the Saint Lawrence monastery in Dieulouard, France from 1659 to 1661. Assigned to Somerset House in London, England from 1661 to 1675. Exiled from England in 1675 for his loyalty to the Vatican, he returned to England where he was accused of being part of the “Popish Plot” of Titus Oates. He was imprisoned and eventually convicted of the crime of being a priest. He received a reprieve from the standard death sentence, but was left in prison till he died.



MLA Citation

  • “Dom John Placid Adelham“. CatholicSaints.Info. 2 February 2020. Web. 6 December 2021. <>