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.
History of Bavaria The history of Bavaria stretches from its earliest settlement and its formation as a stem duchy in the 6th century through its inclusion in the Holy Roman Empire to its status as an independent kingdom and finally as a large "Bundesland" (state) of the modern Federal Republic of Germany.