John Casimir of the Palatinate-Simmern German prince and reigning count palatine of Simmern (1543-1592) (1543–1592) Parents Marie of Brandenburg-Kulmbach Frederick III of the Palatinate Children Countess Palatine Dorothea of Simmern Siblings Anna Elisabeth of Palatinate-Simmern Countess Palatine Elisabeth of Simmern-Sponheim Christoph von der Pfalz Kunigunde Jakobäa of Simmern Louis VI of the Palatinate Dorothea Susanne of Simmern Partners Elisabeth of Saxony