 Anne 's downfall came shortly after she had recovered from her final miscarriage . Whether it was primarily the result of allegations of conspiracy , adultery , or witchcraft remains a matter of debate among historians . Early signs of a fall from grace included the King 's new mistress , the 28 @-@ year @-@ old Jane Seymour , being moved into new quarters , and Anne 's brother , George Boleyn , being refused the Order of the Garter , which was instead given to Nicholas Carew . Between 30 April and 2 May , five men , including Anne 's brother , were arrested on charges of treasonable adultery and accused of having sexual relationships with the queen . Anne was also arrested , accused of treasonous adultery and incest . Although the evidence against them was unconvincing , the accused were found guilty and condemned to death . George Boleyn and the other accused men were executed on 17 May 1536 . At 8 am on 19 May 1536 , Anne , age 36 , was executed on Tower Green . 
