The Collegiate Basilica of Santa Maria of Xàtiva, also known as La Seu, is the principal church of the city of Xàtiva (Valencia), Spain. The construction commenced in 1596.
In this basilica different members of the House of Borgia are buried. At the museum is possible to see the altarpiece of the cardinal Alfonso Borgia and a silver chalice with the name of the Pope Calixtus III and another artworks of the Borgia family.
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.