One of the worst! Recently, British historian Alec Ryrie has described Katherine Willoughby as an ‘evangelical firebrand’ and perhaps ‘the most aggressive of the reformers’ within the royal circle around Henry VIII. Rear View Mirror Professor Michael Haykin Katherine Willoughby A hostile Spanish Roman Catholic source described her as ‘one of the worst heretics in England’. subscribe now Join today to gain access to the rest of this article and many others. more info login If you are already a subscriber, log in to continue. log in access code If you have an access code, enter it here: Go free trial Get free access for 14 days: Sign up Click here to find out how we take care of your personal data.