The Cathedral of Astorga edifice was begun in 1471, within the same walls of its Romanesque predecessors from the 11th-13th centuries. The construction lasted until the 18th century, thus to its original Gothic style appearance were added elements from later styles, such as the Neo-Classicist cloister (18th century), the Baroque towers, capitals and the façade, and the Renaissance portico.
The interior houses numerous artworks, such as the Flemish-Spanish retablo of St. Michael, and the large high altar by Gaspar Becerra (1558), considered a masterwork of the Spanish Renaissance sculpture. Other sculptures include the Purísima by Gregorio Fernández (1626), St. John the Baptist and St. Jerome by Mateo del Prado (17th century) and the Christ of the Waters (14th century).
Next to the church is the Neo-medieval Episcopal Palace, designed by Antoni Gaudí.
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.