Gattilusio
| Gattilusio | |
|---|---|
| Parent house | Doria family (maternal) |
| Country | Republic of Genoa Byzantine Empire |
| Founded | 1355 |
| Founder | Francesco I Gattilusio |
| Final ruler | Niccolò Gattilusio |
| Titles | |
| Estate(s) | Lesbos, Imbros, Samothrace, Lemnos, Thasos, Aenus |
| Dissolution | 15th century |
| Cadet branches | Gattilusio of Aenus Gattilusio of Thasos |
The House of Gattilusio (Ancient Greek: Γατελιοῦζος, romanized: Gatelioũzos) was a Genoese noble family that ruled several lordships in the northern Aegean Sea between 1355 and 1462. Their rise began in 1354, when Francesco I Gattilusio assisted Emperor John V Palaiologos in regaining Constantinople from John VI Kantakouzenos. In 1355, Francesco married the emperor's sister Maria and received the island of Lesbos as a reward for his services against Kantakouzenos.
From their base at Mytilene, the Gattilusi extended their authority to Imbros, Samothrace, Thasos, Lemnos, and the Thracian port of Aenus (modern Enez). Controlling these islands gave them a strategic role in safeguarding the sea routes between Constantinople and the Aegean and in defending the northern approaches to the Dardanelles.
Their authority combined Genoese commercial interests with Byzantine legitimacy, reinforced through repeated marriages with the Palaiologos dynasty. Contemporary inscriptions and coinage reflected these ties, displaying both imperial and family emblems. Their rule ended with the Ottoman conquest of Lesbos in 1462.