Why did Saint Arthur of Glastonbury die?

Because Thomas Cromwell (or his soldier) kill them by sWord inside Lady Chapel of Glastonbery Abbey at night 15 (or 19) November 1539. Because was order of Henry VIII that all killed monks have to be quartered soldiers decided wait to the morning next day with quarter a body of Saint Arthur. His body in the morning disappear, inspite that Abbey was strongly guarded by soldiers of king Henry VIII.