The Church of Saint-André is on the main square in the town of Sauveterre-de-Béarn, a small historic town in the Béarn province. the Church of Saint-André is a very interesting church that has retained substantial elements from its 12th century construction and now includes both roman and gothic architectural styles
At the front of the church there is a large porch, with the three arches at the front separated by moorish style columns. In the facade of the church above the porch there is a rose window with an ornamental surround in carved stone.
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.