Berthold of Rheinfelden and his army lay siege to a castle near Ulm for two weeks, finally destroying it with ballistae and forcing the defenders to surrender.
Bishop Adalbert of Worms and Count Hermann Billung are captured by Slavic bandits and delivered to King Henry IV., after they fled from battle at Mellrichstadt.
Bishop Hezilo of Hildesheim, Count Ekbert and their men ambush Abbot Widerad of Fulda and his followers during Pentecost service in presence of the King, first with fists and clubs, then with weapons, resulting in many injured and dead on both sides.
