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 Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.