Rupert of Germany of the house of Wittelsbach (5 May 1352 - 18 May 1410), he was the son of Rupert II, Elector Palatine of the Rhine and Beatrix of Sicily. Rupert was Elector Palatine from 1398 and German King from 1400 until his death. Wikipedia
The definitive Wikipedia entry for Rupert Of Germany. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Rupert_of_Germany