Castles in Peloponnese

Greek Castles and Fortifications

The Peloponnese peninsula contains a dense concentration of defensive architecture spanning from the Mycenaean era through the Byzantine, Venetian, and Ottoman periods. This collection features strategic maritime strongholds like Methoni and Koroni, the sprawling Byzantine capital of Mystras, and the massive stone bastions of Palamidi. These sites illustrate the region's historical military importance, showcasing diverse architectural styles including Frankish keeps, hexagonal Ottoman citadels, and ancient acropolises repurposed for medieval defense.

Greek Castles and Fortifications — Map

JanCeuleers / Public domain

A

Palamidi

Palamidi is a fortress to the east of the Acronauplia in the town of Nafplio in the Peloponnese region of southern Greece.

Flyax / CC BY-SA 3.0

B

Methoni Castle

The Castle of Methoni is a medieval fortification in the port town of Methoni, Messenia, in southwestern Greece.

Vancouverquadra / Public domain

C

Acrocorinth

Acrocorinth is a monolithic rock overlooking the ancient city of Corinth, Greece.

Andreas Tille / CC-BY-SA-3.0

D

Acronauplia

The Acronauplia is the oldest part of the city of Nafplion in Greece. Until the thirteenth century, it was a town on its own.

E

Koroni Castle

A 13th-century Venetian fortification known as one of the 'Eyes of the Republic.' The triangular site remains inhabited today and contains the Monastery of Timios Prodromos and several Byzantine-era churches within its walls.

Roman Klementschitz / CC BY-SA 3.0

F

Chlemoutsi castle

Chlemoutsi, also known as Clermont, is a medieval castle in the northwest of the Elis regional unit in the Peloponnese peninsula of…

Christian Tavío / CC-BY-SA

G

Venetian Fortress of Rio

Built in 1499 by Sultan Bayezid II at the entrance of the Gulf of Corinth, this fortress features a wide water-filled moat and heavy bastions. It was later expanded by the Venetians and served as a strategic naval point.

AlMare / CC BY-SA 3.0

H

Palace of Nestor

The Palace of Nestor was an important centre in Mycenaean times, and described in Homer's Odyssey and Iliad as Nestor's kingdom of "sandy…

I

Mystras

A UNESCO World Heritage site and former capital of the Despotate of the Morea. This fortified late-Byzantine city includes a hilltop castle, the Palace of the Despots, and several churches renowned for their well-preserved frescoes.

Harald Rossa / CC BY-SA 2.5

J

Fortress of Pylos

Also known as Niokastro, this Ottoman-built fortress dates to 1573. It features a hexagonal citadel, thick ramparts designed to withstand artillery, and a mosque that was later converted into the Church of the Transfiguration.

Vangelis Katsiyiannis / CC BY-SA 4.0

K

Bourtzi

A 15th-century Venetian water castle situated on the islet of Agioi Theodoroi. Designed to protect the port of Nafplio, the fortification later served as a residence for executioners and as a small hotel.

Greg O'Beirne / CC BY 2.5

L

Bourtzi

The water castle of Bourtzi is a Venetian castle located in the middle of the harbour of Nafplio.

C messier / CC BY-SA 4.0

M

Akronafplia

The Acronauplia is the oldest part of the city of Nafplion in Greece. Until the thirteenth century, it was a town on its own.

Joseph P. Brennan / CC BY-SA 4.0

N

Castle Larissa

Larisa is the ancient and medieval acropolis of Argos, located on a high rocky hill, within the town's boundaries to the west.

Drakopoulosdim / CC BY-SA 4.0

O

Castle of Kalamata

The Castle of Kalamata is a ruined medieval fortress in Kalamata, the capital of Messenia in southern Greece.

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