"Sibylla of Anhalt (28 September 1564 – 26 October 1614) was an Ascanian princess of Anhalt who became Duchess of Württemberg by marriage to Duke Frederick ...
I. She was the fourth (but third surviving) daughter of Joachim Ernest, Prince of Anhalt, by his first wife Agnes, daughter of Wolfgang I, Count of Barby-Mühlingen." - (en.wikipedia.org 12.01.2020)
