Salmeniko Castle

Kastro tis Orias) was a castle at the foot of Panachaiko mountain, in the modern municipality of Aigialeia, Achaea, Greece.

In 1460, Ottoman Sultan Mehmed II invaded the Peloponnese, and the castles of the Byzantine Despotate of Morea submitted, one after another, often without resistance.

Mehmed accepted and departed unmolested for Aigio, leaving a certain Hamouzas as governor of the Peloponnese and Thessaly, and to oversee Graitza's departure.

The fall of Salmeniko signalled the complete submission of the Peloponnese (with the exception of Venetian holdings like Nafplion, Methoni and Koroni) to the Ottomans.

A medieval bridge survives intact, while the "Oria rock" (Βράχος της Ωριάς), where, according to local tradition, a princess was killed by a traitor during the Ottoman siege, is nearby.