Panteli Castle

Panteli Castle is located in the municipality of Leros, Greece. This fortress was originally built during the Byzantine era, with its construction dating back to the 10th or 11th century. Historical records confirm its existence by 1087, as it is mentioned in a golden bull issued by Emperor Alexios I Komnenos.

During the 13th century, the castle came under the control of the Genoese, who held sway over parts of the Aegean Sea. In 1304, the Knights Hospitaller, also known as the Johannites, took over the castle, marking a new phase in its defensive role. Between 1436 and 1453, under the governance of the Venetian Johannite Fantino Querini, significant efforts were made to strengthen the fortress, particularly to resist increasing threats from the Ottoman Empire.

Panteli Castle faced numerous Ottoman attempts to capture it, enduring sieges in the years 1455, 1457, 1460, 1477, 1502, 1505, and 1508. These repeated assaults led to the castle’s administration being placed under the direct authority of the Grand Master of the Knights in 1495, highlighting its strategic importance. Following the Ottoman conquest of Rhodes in 1522, control of Leros and its castle was ceded to the Ottomans. The Venetians briefly reclaimed the site in 1648, causing notable damage, but Ottoman forces soon restored their control.

In the 20th century, during Italian rule beginning in 1912, Panteli Castle continued to serve a military purpose, accommodating barracks and a guard post. Its defensive role extended into World War II, although it suffered damage from German bombing raids in November 1943. After the war, Greek military units remained stationed at the site until the 1990s. Restoration work was finally completed in 2005, preserving the castle’s historical legacy.