When did Otto V, Duke of Bavaria's father become the King of the Romans?
Louis IV, Holy Roman Emperor Louis IV (German: "Ludwig" ; 1 April 1282 – 11 October 1347), called the Bavarian, of the house of Wittelsbach, was King of the Romans from 1314, King of Italy from 1327, and Holy Roman Emperor from 1328.
Otto III, Duke of Brunswick-Harburg Otto III, Duke of Brunswick-Lüneburg, Lord of Harburg (20 March 1572 in Harburg – 4 August 1641 in Harburg) was a titular Duke of Brunswick-Lüneburg and ruler of the apanage Brunswick-Harburg.