They had one son Ruprecht (22 May 1406 – 20 May 1426). This marriage brought the Palatine Crown into the hands of the Wittelsbach. Secondly, he married on 30 November 1417 Matilda of Savoy, daughter of Amadeo, Prince of Achaea. They had five children: Mathilde (7 March 1419 – 1 October 1482), married: in 1434 to Count Louis I of Württemberg
Count Palatine John of Neumarkt (1383, Neunburg vorm Wald – 13–14 March 1443) Count Palatine Stephen of Simmern-Zweibrücken (23 June 1385 – 14 February 1459, Simmern) Count Palatine Otto I of Mosbach (24 August 1390, Mosbach – 5 July 1461) Legacy. Rupert's strenuous efforts earned him the surname Clemens ("the Gentle").
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- relacionado con: John, Count Palatine of Neumarkt