John Casimir, Count Palatine of Kleeburg Father of King Charles X of Sweden (1589–1652) Parents Magdalene of Jülich-Cleves-Berg John I, Count Palatine of Zweibrücken Children Countess Palatine Eleonora Catherine of Zweibrücken Christina Magdalena of the Palatinate-Zweibrücken Countess Palatine Maria Eufrosyne of Zweibrücken Charles X Gustav of Sweden Adolph John I, Count Palatine of Kleeburg Siblings John II, Count Palatine of Zweibrücken Marie Élisabeth de Palatinat-Veldenz Frederick Casimir, Count Palatine of Zweibrücken-Landsberg Partners Catherine of Sweden, Countess Palatine of Kleeburg