[1] Sophie Friederike Albertine of Bradenburg-Schwedt was born in Berlin on 21 April 1712 as the third daughter of Prince Albert Frederick of Prussia, Margrave of Brandenburg-Schwedt and Princess Maria Dorothea Kettler of Courland.

Her mother was a daughter of Frederick Casimir Kettler, Duke of Courland and Semigallia and Countess Sophie Amalie of Nassau-Siegen.

Her paternal grandparents were Frederick William, Elector of Brandenburg and Dorothea of Schleswig-Holstein-Sonderburg-Glücksburg.

[1] His first wife, Princess Louise of Anhalt-Dessau, had died the year before in childbirth.

[1] Albertine and Victor Frederick had five children:[citation needed] She died on 7 September 1750 in Bernburg.