See also: Bayreuth (homonymy)

Sophie Wilhelmine de Bayreuth , Margravine of Bayreuth, girl of the king of Prussia Frederic-Guillaume Ier of Prussia, and sister of large the Frederic II of Prussia, born on July 3rd 1709, dead on October 14th 1758.

It had to suffer much, like her brother, in his youth of violences of the king. She married in 1731 the heir to the Margraviat of Bayreuth Frederic de Brandebourg-Bayreuth and was mother of Elisabeth Friederike Sophie de Brandenburg-Bayreuth (1732-1780), described by Giacomo Casanova like the most beautiful girl of Germany, which Maria with Charles II of Wurtemberg in 1748.

Voltaire wrote a Ode on its death.

It left Mémoires (of 1700 with 1742), which appeared only in 1810; reprinted with Paris, in 1845; they offer the most interesting details on the interior of the Cour of Prussia.

The Correspondance of this princess with Frederic II was printed in the Œuvres of the king (volume XXVII).

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