Filocalo Navigajoso was a Venetian

Venice

Venice is a city in northern Italy which is renowned for the beauty of its setting, its architecture and its artworks. It is the capital of the Veneto region...

 nobleman and first Latin ruler of the island of Lemnos

Lemnos

Lemnos is an island of Greece in the northern part of the Aegean Sea. Administratively the island forms a separate municipality within the Lemnos peripheral unit, which is part of the North Aegean Periphery. The principal town of the island and seat of the municipality is Myrina...

 (known as Stalimene in Italian) in Greece

Greece

Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

.

Following the Fourth Crusade

Fourth Crusade

The Fourth Crusade was originally intended to conquer Muslim-controlled Jerusalem by means of an invasion through Egypt. Instead, in April 1204, the Crusaders of Western Europe invaded and conquered the Christian city of Constantinople, capital of the Eastern Roman Empire...

 (1203–1204), the Aegean islands

Aegean Islands

The Aegean Islands are the group of islands in the Aegean Sea, with mainland Greece to the west and north and Turkey to the east; the island of Crete delimits the sea to the south, those of Rhodes, Karpathos and Kasos to the southeast...

, was apportioned to the Republic of Venice

Republic of Venice

The Republic of Venice or Venetian Republic was a state originating from the city of Venice in Northeastern Italy. It existed for over a millennium, from the late 7th century until 1797. It was formally known as the Most Serene Republic of Venice and is often referred to as La Serenissima, in...

 in the partition of the Byzantine Empire

Byzantine Empire

The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

. Various Venetian nobles settled there and claimed the rule of these islands as fief-holders and vassals of the Latin Emperor at Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

. Filocalo received the rule of Lemnos and the title, borrowed from Byzantine court titelature

Byzantine aristocracy and bureaucracy

The Byzantine Empire had a complex system of aristocracy and bureaucracy, which was inherited from the Roman Empire. At the apex of the pyramid stood the Emperor, sole ruler and divinely ordained, but beneath him a multitude of officials and court functionaries operated the administrative...

, of megadux of the Latin Empire. He ruled the island from the fortress of Kastro or Palaiokastro (modern Myrina

Myrina, Greece

Myrina is a former municipality on the island of Lemnos, North Aegean, Greece. Since the 2011 local government reform it is part of the municipality Lemnos, of which it is a municipal unit. It covers the west coast of the island, and has a land area of 82.049 km², about 17.2% of the island's...

) until his death in 1214. Then the island was divided among his heirs. His son, Leonardo Navigajoso

Leonardo Navigajoso

Leonardo Navigajoso was a Venetian nobleman and second Latin ruler of the island of Lemnos in Greece.Leonardo inherited the title of megadux of the Latin Empire and the rule of one half of Lemnos upon the death of his father, Filocalo Navigajoso, in 1214. His two sisters inherited one quarter of...

, received rule of one half of the island with Kastro, and his daughters received one quarter each, with the castles of Moudros

Moudros

Moudros is a town and a former municipality on the island of Lemnos, North Aegean, Greece. Since the 2011 local government reform it is part of the municipality Lemnos, of which it is a municipal unit. It covers the entire eastern peninsula of the island, with a land area of 185.127 km²,...

 and Kotsinos

Kotsinos

Kotsinos is a settlement on the island of Lemnos, Greece. It is part of the community of Repanidi, and the municipal unit of Moudros, and situated 25 to 30 km ENE of Myrina...

. The family's rule over the island lasted until 1278.