She was born Baroness Sophia Charlotte von Platen und Hallermund, the daughter of Clara Elisabeth von Meysenburg, Baroness von Platen und Hallermund, and Ernest Augustus, Elector of Hanover. Her mother's husband, Franz Ernst, Baron von Platen (1631–1709) was officially described as her father (as indeed he was in that, at the time, the child of a married woman was conclusively presumed to be the child of her husband) but the fact that she was the illegitimate daughter of the Elector was acknowledged at court. When her "father" was accorded a comital title in 1689, she became Countess Sophia.
Her half-brother George Louis, succeeded to the British throne as George I in 1714. In 1701, she married Johann Adolf, Baron von Kielmansegg (1668–1717), Deputy Master of the Horse to George Louis and they had three sons and two daughters, the eldest of whom, Charlotte (1703–1782), married Emanuel Howe, 2nd Viscount Howe. She was created Countess of Leinster in the Peerage of Ireland in 1721 and Countess of Darlington and Baroness Brentford a year later in the Peerage of Great Britain, all life peerages. The letters patent for both titles had the king describe her as consanguineam nostram (English: of our common blood) and her coat of arms included the arms of Brunswick with a bar sinister to denote her as an illegitimate daughter of an elector of Hanover.
Diana, Princess of Wales, was one of her descendants.
She was born Baroness Sophia Charlotte von Platen und Hallermund, the daughter of Clara Elisabeth von Meysenburg, Baroness von Platen und Hallermund, and Ernest Augustus, Elector of Hanover. Her mother's husband, Franz Ernst, Baron von Platen (1631–1709) was officially described as her father (as indeed he was in that, at the time, the child of a married woman was conclusively presumed to be the child of her husband) but the fact that she was the illegitimate daughter of the Elector was acknowledged at court. When her "father" was accorded a comital title in 1689, she became Countess Sophia.
Her half-brother George Louis, succeeded to the British throne as George I in 1714. In 1701, she married Johann Adolf, Baron von Kielmansegg (1668–1717), Deputy Master of the Horse to George Louis and they had three sons and two daughters, the eldest of whom, Charlotte (1703–1782), married Emanuel Howe, 2nd Viscount Howe. She was created Countess of Leinster in the Peerage of Ireland in 1721 and Countess of Darlington and Baroness Brentford a year later in the Peerage of Great Britain, all life peerages. The letters patent for both titles had the king describe her as consanguineam nostram (English: of our common blood) and her coat of arms included the arms of Brunswick with a bar sinister to denote her as an illegitimate daughter of an elector of Hanover.
Diana, Princess of Wales, was one of her descendants.
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