John Houghton, OCart was a Catholic priest of the Carthusian order and the first martyr to die as a result of the Act of Supremacy by King Henry VIII of England. He was also the first of the Carthusians to die as a martyr. As one of the Carthusian Martyrs of London he is among the Forty Martyrs of England and Wales.

05-04

c. 1487

4 May 1535 (aged 47–48)

canonized

25 October 1970

Pope Paul VI

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