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| Marino Sanuto the Younger | |
|---|---|
| Name | Marino Sanuto the Younger |
| Native name | Marino Sanuto di Jacopo |
| Birth date | c. 1270s |
| Birth place | Republic of Venice |
| Death date | 1343 |
| Occupation | historian, cartographer, statesman |
| Notable works | Liber Secretorum Fidelium Crucis |
Marino Sanuto the Younger was a Venetian chronicler, cartographer, and political writer active in the late 13th and early 14th centuries. He served in various administrative posts in the Republic of Venice and produced the extensive Liber Secretorum Fidelium Crucis, a treatise proposing renewed Crusades and introducing detailed cartography and strategic planning. Sanuto's work influenced contemporaries and later figures involved in Mediterranean diplomacy, military planning, and geographic scholarship.
Sanuto was born into a prominent Venetian patrician household, son of Jacopo Sanuto, within the sociopolitical milieu of the Republic of Venice, amid rivalries involving families such as the Dogaressal lineages and the Querini and Morosini. He grew up during the aftermath of the Fourth Crusade and the shifting balance between the Latin Empire, the Empire of Nicaea, and the Palaeologus dynasty. His formative years coincided with the reigns of Pope Boniface VIII and Pope Clement V, events including the Sicilian Vespers and the campaigns of Charles of Anjou, which shaped his views on Latin‑Greek relations, the Knights Hospitaller, and the Knights Templar.
Sanuto held multiple offices in Venetian administration, including duties related to the Venetian Senate, the Magistrato, and postings in Venetian overseas territories such as Candia, Kerkyra, and ports in the Aegean Sea and Levant. He corresponded with figures across Europe and the Eastern Mediterranean, including representatives of the Papacy, the Kingdom of Cyprus, the Kingdom of Jerusalem, and agents of the Mamluk Sultanate. Sanuto compiled chronicles that engaged with the histories of the Latin Empire, the Byzantine Empire, the Republic of Genoa, the Crown of Aragon, and rulers like Philip IV of France, Edward I of England, and Louis IX of France. His works integrated reports from diplomats, notaries, and merchants operating through the Fondaco dei Tedeschi and Venetian chancery networks.
Sanuto's principal opus, the Liber Secretorum Fidelium Crucis, combined strategic proposals for a new Crusade with detailed geographic information, maps, and logistical plans. He addressed papal authorities including Pope John XXII and later Pope Benedict XII, proposing coordination among the Kingdom of France, the Kingdom of England, the Holy Roman Empire, and maritime powers such as Republic of Venice and Republic of Genoa. The treatise discussed capture of key ports like Acre, Damietta, Alexandria, and fortresses in Asia Minor and the Levant. Sanuto proposed leveraging naval assets of the Knights Hospitaller and commercial fleets from Majorca and Pisa to secure supply lines to Rhodes and Cyprus. The work contains proto-modern maps reflecting knowledge from contacts with merchants of Damascus, Alexandria, Antioch, and Tripoli. Sanuto argued for diplomatic engagement with Byzantine rulers of the Palaiologos house and for treaties with the Armenian Kingdom of Cilicia to create a united front.
Sanuto actively sought patronage and political support for his proposals, petitioning papal curiae, the Dogeship of Venice, and monarchs such as Charles IV of Anjou and Philip VI of France. He engaged with ambassadors from the Mamluk Sultanate and envoys associated with the Ilkhanate and Golden Horde to assess eastern geopolitics. His administrative roles involved interactions with the Great Council of Venice, the Consuls of the Sea, and maritime courts that regulated trade with Constantinople, Alexandria, and Trebizond. Sanuto coordinated information from Venetian baili, castellans, and podestàs in colonies like Negroponte and Methoni, and he advocated policies balancing commerce with military objectives, referencing treaties such as those negotiated after conflicts like the War of Saint Sabas.
Sanuto's blend of cartography, logistics, and diplomacy influenced later crusading discourse and geographic scholarship, informing figures involved in subsequent plans for eastern intervention and serving as a source for historians of the Late Middle Ages. His maps and data were consulted by Venetian archivists, chroniclers like Giovanni Villani, cartographers associated with the Catalan Atlas, and later compilations by scholars in Padua, Florence, and Paris. Elements of his proposals reappeared in strategies considered by the Order of Saint John and were referenced in diplomatic correspondence between Venice and the Ottoman Empire in later centuries. Sanuto's treatise contributed to evolving European perceptions of the Levant, Byzantium, and Mediterranean navigation.
The Liber Secretorum Fidelium Crucis survives in multiple manuscript copies housed in libraries and archives, including collections in Venice, Florence, Paris, and London. Manuscripts feature maps, itineraries, and appended letters to popes and monarchs; scribes associated with scriptoria in Padua and chancery offices in Ravenna and Ancona produced variants. Modern editors and historians have published critical editions and translations, and the work has been examined in studies of medieval cartography, crusade literature, and Venetian foreign policy. Surviving codices show annotations by readers connected to the Council of Vienne and later papal curiae, attesting to the treatise's circulation among ecclesiastical and secular elites.
Category:13th-century births Category:1343 deaths Category:People from the Republic of Venice Category:Medieval cartographers Category:Crusade writers