 Sigibert, with an Austrasian army including Grimoald and Duke Adalgisel, went on campaign and after a brief victory against Fara, son of the assassinated Agilofing lord Chrodoald, the Austrasians met Radulf on the River Unstrut where he had set up a stronghold.What followed was a disorganized battle spread over several days, in which the Austrasian lords disagreed on tactics.Grimoald and Adalgesil strengthened their position by defending Sigibert's interests, but could not establish a unanimous agreement.