 This is contested by, e.g., Bury, who points out problems in much of Gregory's chronology for the events.In c. 500, when Gundobad and Clovis were at war, Gundobad appears to have been betrayed by his brother Godegisel, who joined the Franks; together Godegisel's and Clovis' forces "crushed the army of Gundobad".Gundobad was temporarily holed up in Avignon, but was able to re-muster his army and sacked Vienne, where Godegisel and many of his followers were put to death.