 The Saxon Count Theoderic II of Katlenburg and Bishop Udo of Hildesheim entered into secret negotiations with Henry during the conference, but the Saxons who remained hostile to Henry soon murdered Theoderic and forced the bishop to flee from Saxony.After the bishop persuaded Henry to pledge he would respect the Saxons' liberties, many rebels laid down their arms.The papal legate, Cardinal Odo of Ostia, summoned the German prelates who were loyal to Pope Gregory VII to a synod at Quedlinburg.