Lady Jane Grey (1537-1554), queen of England for nine days, born in Bradgate Park, near Leicester, a great-granddaughter of King Henry VII and daughter of Henry Grey, duke of Suffolk and 3rd marquess of Dorset. When Lady Jane was 15 years old, England's powerful lord chamberlain John Dudley, duke of Northumberland, arranged a marriage for her with his son, Guildford Dudley. The lord chamberlain's purpose was to change, through Lady Jane, the royal succession upon the death of the ailing young king, Edward VI, so that he could continue to control the country through her. Edward approved the marriage and secured witnesses to a deed declaring Lady Jane his successor. Upon the death of the king, on July 6, 1553, Lady Jane was proclaimed queen, but Edward's half sister, Mary Tudor, contested the succession. Lady Jane was subsequently imprisoned in the Tower of London. She and her husband were accused of treason, and both were beheaded on February 12, 1554.