The Sanctuary of Our Lady of Oro is a place of worship in the Zuia Valley of northern Spain. It is about 3.5 kilometres (2.2 mi) from Murgia, in the center of the valley. The first known document mentioning it dates to 1138.
Local archeologists conducted four excavations from 1964 to 1967, and found evidence of human habitation in three eras. The oldest dates to the late Bronze Age (850-700 BC). A later community inhabited the area from 450 to 350 BC, followed by settlement during the later Roman Empire.
Nothing remains of the original Romanesque church. According to some historians, the sanctuary dates from the late 11th century to the 12th century. This is evidenced by its Romanesque images, similar to those in churches in the nearby villages of Domaikia, Markina-Xemein and Gillerna. The main church vaults were apparently constructed from the end of the 14th to the 15th century, with false plaster vaults in the sacristy dating to 1771.
The church's Baroque altar, built by Antonio de Alvarado in 1691, was preserved after the 1964 renovation and the medieval statue of Our Lady of Oro was restored in 1930. There are two chapels, one dating to 1638 and the other to 1761.
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.