The Duchess: Keira Knightley plays the 18th century aristocrat Georgiana, Duchess of Devonshire. An ancestor of Princess Diana, she lived an extravagant, profligate & promiscuous life of political & romantic intrigue, becoming an important powerbroker amid Britains ruling elite but also running up catastrophic gambling debts. She was alternately feted & reviled, & widely caricatured by the popular press. The Queen: In the wake of the d