Princess Sophie Charlotte of Brandenburg-Bayreuth, was a German noblewoman member of the House of Hohenzollern and by marriage Duchess of Saxe-Weimar and Saxe-Eisenach.

George Frederick Charles, Margrave of Brandenburg-Bayreuth, was a German prince, member of the House of Hohenzollern, nominal Margrave of Brandenburg-Bayreuth-Kulmbach and Margrave of Brandenburg-Bayr