Duchy of Neopatras

Duchy of Neopatras
1319–1390
Coat of arms of the Duchy of Neopatras Argent, a saltire gules between four crosses couped of the second
Status	Under the suzerainty of the Kingdom of Sicily, after itself part of Crown of Aragon
Capital	Neopatras
Common languages	Greek popularly
Religion	Roman Catholic officially, Greek Orthodox popularly
Government	Feudal duchy
Historical era	Middle Ages
• Sicilian capture of Neopatras by Frederick Alfonso of Sicily	1319
• Neopatras conquered by Nerio I Acciaioli	1390
Preceded by Succeeded by John II Doukas Serbian Empire Nerio I Acciaioli

The Duchy of Neopatras (Catalan: Ducat de Neopàtria; Sicilian: Ducatu di Neopatria; Greek: Δουκάτο Νέων Πατρών; Latin: Ducatus Neopatriae) was a principality in southern Thessaly, established in 1319. Officially part of the Kingdom of Sicily, itself part of the Crown of Aragon, the duchy was governed in conjunction with the neighbouring Duchy of Athens, it enjoyed a large degree of self-government. From the mid-14th century, the duchies entered a period of decline: most of the Thessalian possessions were lost to the Serbian Empire, internal dissensions arose, along with the menace of Turkish piracy in the Aegean and the onset of Ottoman expansion in the Balkans. Enfeebled, the Catalan possessions were taken over by the Florentine adventurer Nerio I Acciaioli in 1385–1390. The title of Duke of Neopatras was held by the heir of the King of Sicily.^[1]