Following the assassination, Charles I arbitrated an agreement between Amadeus' sons and the town, which also prescribed that the Abas withdraw from two counties and allow the noblemen inhabiting their domains to freely join Charles. In accordance with the treaty, Julius was one of the those 47 lords, who offered hostages in order to preserve lasting peace. However, the Abas soon entered into an alliance with Matthew Csák against the king. Julius remained a loyal partisan of Charles during the conflict, as the king confirmed his donation letter to his servant on 14 June 1312, one day before the Battle of Rozgony. Julius did not appear in contemporary documents thereafter. He died by 1315, as his nephews John and Peter confirmed one of his donations in January of that year.