Sister Elizabeth Barton (1506? – 20 April 1534), known as "The Nun of Kent", "The Holy Maid of London", "The Holy Maid of Kent" and later "The Mad Maid of Kent", was an English Catholic nun. She was executed as a result of her prophecies against the marriage of King Henry VIII of England to Anne Boleyn.
Little is known about her early life. She was born in 1506 in the parish of Aldington, about twelve miles from Canterbury, and she appears to have come from a poor background. She was working as a servant when her visions began in 1525.
At the age of 19, while working as a domestic servant in the household of Thomas Cobb, a farmer of Aldington, she suffered from a severe illness and claimed to have received divine revelations that predicted future events, such as the death of a child living in her household or, more frequently, pleas for people to remain in the Roman Catholic Church. She also urged people to pray to the Blessed Virgin Mary and to undertake pilgrimages. Thousands believed in her prophecies and both Archbishop William Warham and Bishop John Fisher attested to her pious life.
When some events that she foretold apparently happened, her reputation spread. The parish priest, Richard Masters, referred the matter to Warham, who appointed a commission to ensure that none of her prophecies were at variance with Catholic teaching. When the commission decided favourably, Warham arranged for Barton to be received in the Benedictine St Sepulchre's Priory, Canterbury.
In 1528, she held a private meeting with Cardinal Thomas Wolsey, the second most powerful man in England after Henry VIII, and she soon thereafter met twice with Henry himself. Henry accepted Barton because her prophecies then still supported the existing order. Her prophecies warned against heresy and condemned rebellion at a time when Henry was attempting to stamp out Lutheranism and was afraid of possible uprising or even assassination by his enemies.