San Miguel is a Roman Catholic church in Córdoba, Andalusia, southern Spain. It is one of the twelve churches built by order of King Ferdinand III of Castile in the city after its conquest in the early 13th century. It was declared a monument of national interest in 1931.
It is an example of transition from the Romanesque to Gothic architecture, although the interior was largely renewed in 1749. It has a nearly square plan, with a nave and two aisles without a transept, a with polygonal apses; the nave has a coffered ceiling.
The main altar, in marble, was built in the 18th century. A side entrance has a horseshoe arch, perhaps dating to the Caliphate age.
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.