Saint Peter of Nora (Iglesia de San Pedro de Nora) is recorded for the first time in a donation document of Alfonso III of Asturias in 905.
Given its similarities with the church of San Julián de los Prados and the church of Santa María de Bendones, it was probably built in the times of Alfonso II of Asturias. Declared National Monument in 1931, the church burnt in 1936 during the Spanish Civil War losing the roof. It was restored by Luis Menéndez Pidal y Alvarez.
This church has the construction style established in church of San Julián de los Prados: facing eastwards, vestibule separate from the main structure, basilica-type ground plan, central nave higher than the side aisles, with intersecting wooden roof and lit by Windows with stone lattice. The straight sanctuary is divided into three apses with barrel vaults. As a differentiating element, the apses were joined to each other through the dividing walls by semicircular-arched doors. Like all the churches from this period, there was a room over the apse, only accessible from outside through a trefoil window. The bell tower, separate from the church like in Santa María de Bendones, does not belong to the original construction, and stems from an initiative in the seventies by the architect and great restorer of Asturian Pre-Romanesque, Luis Menéndez Pidal y Alvarez.
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.