The Hungarians invaded Italy using the so-called "Route of the Hungarians" leading from Pannonia to Lombardy in 904. They arrived as King Berengar I's allies against his rival, King Louis of Provance. The Hungarians devastated the territories occupied earlier by King Louis along the river Po, which ensured Berengar's victory. The victorious monarch allowed the Hungarians to pillage all the towns that had earlier accepted his opponent's rule, and agreed to pay a yearly tribute of about 375 kilograms (827 lb) of silver.

The Hungarians' victory hindered any attempts of eastward expansion by East Francia for the following decades and opened the way for the Hungarians to freely plunder vast territories of that kingdom.