 Another factor was the fate of Sophia <unk> , found guilty of coining . Hammett 's bill was introduced only four days before <unk> 's fate was to be decided , but a petition for her respite from burning , supported by another sheriff of London ( either Thomas Baker or William Newman ) and brought to King George III 's notice by William Grenville , proved successful . <unk> suggests that her impending fate lent weight to the eventual outcome of Hammett 's bill , which was to abolish the burning of women for treason through the Treason Act 1790 . Christian Murphy , who at her execution in 1789 was " <unk> in a clean striped gown , a white ribbon , and a black ribbon round her cap " , was the last woman in England to be burned . 
