Question: Who is the paternal grandfather of Anna Of Saxe-Wittenberg?
Sentence (from "Wenceslaus I, Duke of Saxe-Wittenberg"): Wenceslas I, Duke of Saxe-Wittenberg (– 15 May 1388, in Celle) from the House of Ascania ruled from 1370 to 1388 and was a prince-elector of the Holy Roman Empire as well as Prince of Lüneburg.
Relevant evidence: No