Samuele Masi"According to the Norman chronicler Dudo of Saint Quentin, in 860 a fleet led by Björn Ironside and his tutor Hasting sacked several towns between the Iberian Peninsula and Tyrrhenian Italy, pushing as far as Luni, which the raiders conquered by deception after mistaking it for Rome."
Cit. Medioevo nordico. La Scandinavia dall'età delle migrazioni alla Riforma Protestante.