Dorothea Susanne of Simmern Duchess of Saxe-Weimar, (1544-1592) (1544–1592) Parents Marie of Brandenburg-Kulmbach Frederick III of the Palatinate Children Sybil Marie von Sachsen-Weimar Maria, Abbess of Quedlinburg Friedrich Wilhelm I, Duke of Saxe-Weimar John, Duke of Saxe-Weimar Siblings Anna Elisabeth of Palatinate-Simmern Countess Palatine Elisabeth of Simmern-Sponheim Christoph von der Pfalz Kunigunde Jakobäa of Simmern John Casimir of the Palatinate-Simmern Louis VI of the Palatinate Partners John William, Duke of Saxe-Weimar