Katherine Willoughby de Eresby (22 March 1519 – 19 September 1580), later Katherine Brandon, then Katherine Bertie, was an English heiress, Protestant rebel, and overall total heroine. From a pretty gross start (being married at age 14 to her adoptive father figure), she wielded her wealth and privilege to support other women and Protestants.
Understanding the life of Katherine Willoughby (On The Tudor Trail)
Katherine Willoughby, the Lincolnshire Lady who nearly married Henry VIII (LincolnshireLife)
Katherine Willoughby by Sarah Bryson (Tudor Society)
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