Nicola Tallis is an independent historian, whose interests are sixteenth century queenship and jewellery. She is the author of Crown of Blood: The Deadly Inheritance of Lady Jane Grey (2016), Elizabeth's Rival: The Tumultuous Tale of Lettice Knollys, Countess of Leicester (2017), and Uncrowned Queen: The Fateful Life of Margaret Beaufort, Tudor Matriarch (2019).