In an open plain between the Padus and the road, two legions happened to meet. On the side of Vitellius was the 21st, called the Rapax, a corps of old and distinguished renown. On that of Otho was the 1st, called Adjutrix, which had never before been brought into the field, but was high-spirited, and eager to gain its first triumph. The men of the 1st, overthrowing the foremost ranks of the 21st, carried off the eagle. The 21st, infuriated by this loss, not only repulsed the 1st, and slew the legate, Orfidius Benignus, but captured many colours and standards from the enemy. In another quarter the 13th legion was put to flight by a charge of the 5th. The 14th was surrounded by a superior force. Otho's generals had long since fled, and Cæcina and Valens strengthened their army with the reserves. New reinforcements were supplied by Varus Alfenius with his Batavians. They had routed the band of gladiators, which had been ferried across the river, and which had been cut to pieces by the opposing cohorts while they were actually in the water. Thus flushed with victory, they charged the flank of the enemy.