Traces the early nineteenth-century adultery trial of Queen Caroline, describing her loveless arranged marriage to George IV, their mutual separation and affairs with other people, and the public's riotous defense of Caroline.

'Splendid ... her book does justice to a fascinating woman who was tragic, brave, likable, humorous, and indeed, unruly' Spectator 'Written with elegance, wit and a narrative zest that novelists might envy' Economist At the heart of the extravagant Regency period – nine scandalous, politically fascinating years from 1811 to 1820 – lies the bitter mismatch between the Prince and Princess of Wales. The Prince Regent, later George IV, separated privately from Caroline of Brunswick within a year of their marriage in 1795. The couple remained separated until Queen Caroline's death in 1821, but the mockery of their marriage resisted the most strenuous efforts to dissolve it. Barred from the Regent's court, Queen Caroline travelled through Europe with a small court of her own. The story of The Unruly Queen – a long, courageous fight by an extraordinary individual to see justice done in the face of overbearing authority – is compellingly told by Flora Fraser. This astonishing book culminates with the Queen's House of Lords trial for adultery and exclusion from her bigamous husband's coronation.

Chronicling as it does the breakdown of George IV's marriage to his loathed cousin Caroline, and his futile attempt to divorce her and deprive her of her royal rights and status, A Queen on Trial throws up fascinating parallels with Diana and Charles' acrimonious separation and comes as a timely reminder of the cyclical, repetitive nature of history.