The Battle of Autun was a pitched battle in 642 or 643, concluding a feud between Flaochad and Willebad, two magnates of the Merovingian kingdom of Burgundy. The battle is recounted in detail in the final chapter of the contemporary Chronicle of Fredegar and also in the biographies of saints Eligius of Noyon and Sigiramn. While Fredegar seems hostile to Willebad, the hagiographers are hostile to Flaochad. The anonymous author of Fredegar may have been an eyewitness.