References

Amalfi - Wikipedia 

Duchy of Amalfi - Wikipedia

Duke of Amalfi - Wikipedia

Amalfi Cathedral - Wikipedia 

Paul Oldfield - Urban society and communal independence in Twelfth-Century Southern Italy - 2006

Laura Thayer - History, treasures and tradition at Amalfi's Arsenale Museum (charmingitaly.com) - 2011

Jill Caskey -  Art and Patronage in the Medieval Mediterranean: Merchant Culture in the Region of Amalfi - 2011

Romney David Smith - Across an Open Sea. Mediterranean Networks and Italian Trade in an Era of Calamity - 2016

Paul Oldfield - Autonomy and Identity in the Cities of Norman Italy, c. 1050-c.1200 - 2016

Bridget Kathryn Riley - Quotquot invenire posset: Inventiones and Historical Memory in Southern Italy, c. 900-1150 - 2020