For Chapuys tells a very different story: not only was Catherine prepared for death, she even went through a form of rehearsal to make sure she got things right. Later on Sunday evening, the ambassador reported, “She asked to see the block, pretending she wanted to know how she was to place her head on it”. Her request was granted and the block was brought to her Chamber. Once it was in place, “she herself tried and placed her head on it by way of experiment”.
Six Wives, The Queens of Henry VIII - David Starkey