Alemanni forces under Rando sacked the city in 368. From the last day of 405 or 406, the Siling and Asding Vandals, the Suebi, the Alans, and other Germanic tribes crossed the Rhine, possibly at Mainz. Christian chronicles relate that the bishop, Aureus, was put to death by the Alemannian Crocus. The way was open to the sack of Trier and the invasion of Gaul.