"Duchess Sophie Caroline Marie of Brunswick-Wolfenbüttel (German: Sophie Karoline Marie; 7 October 1737 – 22 December 1817) was Margravine of Brandenburg-Bayreuth by marriage to Frederick, Margrave ...
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of Brandenburg-Bayreuth. She was the eldest daughter of Charles I, Duke of Brunswick-Wolfenbüttel, and his wife, Philippine Charlotte of Prussia, sister of Frederick the Great." - (en.wikipedia.org 31.01.2020)
