But to no avail , as Berengar of Ivrea is hailed throughout northern Italy as a liberator , and Hugh flees to Provence .
King Hugh of Provence lays siege to Vignola to put an end to Berengar 's advance .
To no avail , as Berengar of Ivrea is hailed throughout northern Italy as a liberator , and Hugh of Provence flees to Provence .
King Hugh of Provence lays siege to Vignola to put an end to Berengar 's advance .