The Castle of Saint George was a medieval fortress located in the granite massif of Mount Pindo, in Carnota.

The buildings stood for a good part of the Middle Ages, after being founded (or refounded) in the 10th century (at the time of the Western Towers) by the bishop Sisnando II, as part of his strategy of fortifying the Galician coast against the continuous Norman and Arab attacks and looting from the sea,[1] also defending at this point an important path to Santiago de Compostela, a coveted economic and religious center of the time.

[citation needed] The fortification was located on Pico Pedrullo, a steep cliff 300 meters (980 ft) high located on the coast of Carnota near the site of Quilmas [gl], a spectacular natural geological formation with which they melted the walls of the fortress themselves, creating a complex that was very difficult to access.

[citation needed] After passing alternately through the hands of the Crown, church and nobles of the time, and after featuring prominently in the Carnota Revolt [gl], little by little this fortress lost importance as the centers of power settled in the area around Santiago de Compostela from the thirteenth century, until finally at the beginning of the fourteenth century the noble Lope Sánchez de Ulloa, who at that time held the castle's title, asked the Church for permission to demolish the fortification:[citation needed] And you have knowledge that Lope Sanchez de Vlloa gave to Archbishop Don Rodrigo about dismantling the house of Saint GeorgeUnlike the neighboring Peñafiel Castle, the castle must have already been destroyed at the time of the Irmandiño revolts, which is confirmed by the absence of any reference to this fortification in medieval documentation that is preserved about this event.

[citation needed] Over the centuries, the ruins of the castle became part of local legends and oral tradition, which placed among its rubble the treasures of the tomb of Queen Lupa.