Overview
Sophia Dorothea of Brunswick-Lüneburg-Celle (15 September 1666 – 13 November 1726) was the repudiated wife of future King George I of Great Britain. The union with George, her first cousin, was a marriage of state, arranged by her father George William, her father-in-law the Elector of Hanover, and her mother-in-law, Electress Sophia of Hanover, first cousin of King Charles II of England. Sophia Dorothea is best remembered for her alleged affair with Count Philip Christoph von Königsmarck that led to her being imprisoned in the Castle of Ahlden for the last thirty years of her life.
Life
Early years
Born in Celle on 15 September 1666, Sophia Dorothea was the only surviving daughter of George William, Duke of Brunswick-Lüneburg, by his morganatic wife Eléonore Desmier d'Olbreuse (1639–1722), Lady of Harburg, a French Huguenot noblewoman. Sophia Dorothea appears to have grown up in a carefree and loving environment.
Her father transferred large assets to her over time in order to improve her chances as a candidate for marriage. Her status was enhanced, and her chances were further improved, when, by imperial order dated 22 July 1674, and in recognition of the military assistance given by her father to Emperor Leopold I, she and her mother received the title of Countess of Harburg and Wilhelmsburg" (Gräfin von Harburg und Wilhelmsburg) with allodial rights over those demesnes.
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