San Domingos Convent was founded around 1282, although the work on the conserved temple did not begin until 1383, continuing through the 15th century.
Following the introduction of the exclaustration law, the convent was closed in 1836. The building gradually deteriorated until it fell into ruin and by 1846 some of its materials were being used to pave streets. In 1864 a chapel was demolished and between 1869 and 1870 the top part of the tower, located on the south-eastern corner, was torn down.
This is the oldest of all Pontevedra Museum’s buildings. The only sections of the original buildings that have been conserved are the main apse, formed by five apses, exceptional in Galician gothic architecture, and part of the south wall of the church and the entrance to the chapter.
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.