Castle da Rocha Forte was built by Archbishop Juan Arias around 1240 and has since served as an archbishop's and cabildo's residence, witnessing much of the medieval history of Santiago. In the year 1255 appears the first documentary mention of the fortress in relation to the capitular constitutions of Juan Arias. The castle was situated in a strategic location by road from Padrón village to Santiago. Pilgrims followed that route from Portugal.
In addition to its purpose for defence, the castle was also a home for the Archbishop, which could provide the men of the local church a shelter from rioting citizens. In 1317, Berenguel de Landoira was nominated as Archbishop. The residents did not like him and started a rebellion. Archbishop Landoira had all the leaders of the rebellion executed. In the 15th century in Irmandiño wars the castle was damaged badly and it was abandoned. Later, in 1472 the walls were dismantled. During the Franco era the ruins were used as a hideout. In 1962, an electricity pylon was installed to the castle area.
Since 2001, a series of archaeological excavations have been carried out, thanks to an agreement between the City Council of Santiago and the University of Santiago de Compostela, in order to recover the deposit and consolidate it by means of the creation of an Archaeological Park.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.