“Perchtoldo de Esgilbach” exchanged property with Freising church, in the presence of “Ottonis advocatis et filii sui Ottonis”, by undated charter dated to the early 12th century. Wegener conflates Graf Otto [III] and Graf Otto [IV] into one person. Europäische Stammtafeln shows them separately. The latter is more probable from a chronological point of view. If it is correct that Graf Otto [III] was the son of Graf Ekkehard, he must have been born just before the death of his father in [1087/88], given the age of his mother. On the other hand, Otto I Duke of Bavaria married in [1156/58]. The difference between these two dates would be unusually great if Duke Otto was the son of Otto [III]. No primary sources have so far been found to confirm the matter one way or another. Otto Bishop of Freising confirmed an exchange of property, confirmed by “Otto Palatinus comes senior et filius eius Otto”, by undated charter.
Vogt of Freising Cathedral. Vogt von Ensdorf, Ober Pfalz. He founded Ensdorf Monastery in 1121, and Indersdorf Convent 1124. Pfalzgraf von Wittelsbach 1124. Vogt von Geisenfeld [1130].
The necrology of Thierhaupt records the death "Non Aug" of "Otto com de Wittelspach". The necrology of Undensdorf records the death "II Non Aug" of "Otto palatinus pater ducis". The necrology of Weltenburg records the death "II Non Aug" of "Otto palatinus com". 1