To protect itself from possible attacks and invasions by Savona and Marquisate of Finale, Noli allied in 1202 with the Republic of Genoa in a sort of protectorate, in fact, documents of the time show that the relationship was equal and not one of submission.

[2] The alliance allowed the Republic of Noli to have such growing importance that in 1239, a diocese was established there by Pope Gregory IX.

[4] Despite its small size, Noli's good shipyard and harbour allowed them to become a commercial power.

[6] Noli's efficient shipyard allowed them to become somewhat of a naval power, despite its small size.

Many of the merchant ships of Noli chose to fly under the Genoese flag, as it commanded much more respect.