William I Sanudo
In his youth, he was involved in the War of the Ass with the Ghisi. William's father succeeded in reacquiring some territories he had lost shortly before he left the intact duchy to his son. William's son and successor, Nicholas, was one of the few knights to escape from the Battle of Halmyros in 1311. His other sons were John I and Marco Sanudo, Lord of Milos.
- Setton, Kenneth M. (general editor) A History of the Crusades: Volume II — The Later Crusades, 1189 – 1311. Robert Lee Wolff and Harry W. Hazard, editors. University of Wisconsin Press: Milwaukee, 1969.
- Setton, Kenneth M. (general editor) A History of the Crusades: Volume III — The Fourteenth and Fifteenth Centuries. Harry W. Hazard, editor. University of Wisconsin Press: Madison, 1975.
- Mihail-Dimitri Sturdza, Dictionnaire Historique et Généalogique des Grandes Familles de Grèce, d'Albanie et de Constantinople, Paris: Sturdza, 1983, p. 549
| Duke of the Archipelago