St James Church in Manorbier dates from the 12th century, and has been considerably altered over the years, though medieval ceiling paintings in the porch survive. The church has a slender tower of the local type and a bellcote. The chancel was built in about 1250 on older foundations with the transepts added in the same period.
There are three military graves in the churchyard dating between 1918 and 1920 that are looked after by the Commonwealth War Graves Commission.
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.