England's Mistress

Kate Williams is an author, social historian and broadcaster. She fell in love with history whilst studying for her BA and DPhil at the University of Oxford and has MAs from Queen Mary and Royal Holloway. She is a Professor of History and appears regularly on television – she recently presented The Stuarts, is the in-house historian and royal expert for CNN, and has appeared on programmes from The Great British Bake Off to election coverage and comedy panel shows. She has written five historical biographies and a series of historical novels, and loves nothing more than a spending her time in dusty archives.

This rich and bouncy biography of a driven woman - mad for fashion, mad on passion - makes Posh look like a novice