Louis III, Elector Palatine Elector Palatine (1378–1436) Parents Elisabeth of Nuremberg Rupert Children Mechthild of the Palatinate Margarete von der Pfalz Ruprecht of the Palatinate Louis IV, Elector Palatine Rupprecht von Bayern Frederick I Elisabeth of Bavaria Siblings Otto I John Ruprecht Pepijn van de Palts Elisabeth of the Palatinate Agnes van de Palts Margaret of the Palatinate Stephen, Count Palatine of Simmern-Zweibrücken Partners Mathilde van Savoye Blanche of England