The commandery of Saint-Jean-d'Acre is a monumental complex founded by the Hospitallers. From the first years of the establishment of the Crusaders in the city, the Hospitallers received donated properties. In 1110, King Baldwin granted the permission to them to keep the buildings located to the north of the Sainte-Croix church. In the years 1130, the buildings were damaged during works near the church and the Hospitallers decided to move near the 12th century north wall of the city. This is the actual place of the commandery.
In 1149, the first testimony of the commandery is in a document concerning the construction of the Saint-Jean church. In 1169, a pilgrim described the commandery of the Hospitallers of Acre as a very impressive fortified building.
After the defeat of Hattin in 1187, Saladin took the city. In 1191, during the third Crusade, the Frankish reconquer Acre after its siege. The Hospitallers moved back in their buildings. Jerusalem is no longer in the hands of the crusaders. And so the commandery becomes the new headquarters of the order. A new construction campaign took place between the end of 12th century and 13th century with new wings and additional floors.
The courtyard has an area of 1200 m2 and is surrounded by a series of arcades. On the east side, a staircase leads to the upper parts. A well with a depth of 4.5 m is located near the north side and two shallow pools are next to this well. On the south side a pool with a depth of 1.5 m and another well were built.
The north wing was built along the north wall. There are ten vaulted rooms ten meters high built during the Frankish era. The exterior wall is massive with a thickness of 3.5 m. Later to the west, two new rooms will complete this building. In the south wall, there are windows that overlook a narrow passage and the wall of the pillar room. The entrance of the building is in the south side wall.
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.