St Daniel's Church is situated on a hill approximately 1.1 kilometres south of Pembroke Castle. One of the oldest churches in the area, it is located on an ancient, pre-Norman site associated with Saint Deiniol throughout the 6th century.
The saint to whom it is dedicated is Deiniol, who according to tradition was the first Bishop of Bangor. It is claimed that Deiniol had a hermit's cell on the site, pre-dating the church, and the site has also been linked to Saint David. The site gained a reputation for miraculous healing, and became a shrine for pilgrims who would drink from the well.
The current structure dates to the 14th or 15th century. It underwent repair in 1780, and again in 1849 and 1893. Today, the church, a small structure built of rubble stone with a slate roof, is disused. It has a nave, a chancel, and a spire, with a tower on the western side.
By 1832 the building was in private hands and it was being bought and sold along with the land on which it was built. At the end of the 19th century it was in use only as a cemetery chapel.
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.