The Compesières Commandry is the main Commandry of the Order of Malta in the Canton of Geneva in Switzerland. The village of Compesières existed since the 12th Century and was also mentioned as the family name of the local noble family. In 1270 the Bishop of Geneva, Aymo of Menthonay, granted the village church to the Order of Saint John. They then expanded the church into a Commandery. It is likely that the oldest parts of the castle date from this period. The current castle was built in the 15th century. It was used by the Order as a hospice for pilgrims, hospital and a military saltpeter factory. In 1536, during the Protestant Reformation, the Commandry was stripped from the Order. The order returned to the castle in 1564, but it was held by the Protestant leaders of Geneva and Bern until a treaty between Geneva and Savoy returned it completely in 1598.
The order continued to hold the Commandry until the 1882, when it was transferred to the municipality of Bardonnex. In 1955, the municipality gave one of the rooms in the castle to the Order of Malta to build a museum.
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.