Palamidi is a fortress in Nafplio which was built in 1687 by the Venetians, after occupying the hill on which it is located, after a fierce battle with the Ottomans during the Venetian-Turkish War. The hill on which it stands is 216 meters high and reaches Palamidi either by carriageway or by a staircase with multiple steps (referred to as 999 steps). In 1715, during the last Venetian-Turkish War, the Ottomans conquered it after blasting part of it.

During the Greek Revolution of 1821, the Turks fortified Palamidi but on 30 November 1822, the Greeks occupied it after a battle involving Staikos Staikopoulos Moschonissiotis and 300 men.

After the Revolution, Palamidi served as a prison, where Theodore Kolokotronis was imprisoned in 1833 and released 11 months later, thanks to King Otto.