Château de Merpins, is a ruined castle in Merpins, Charente-Maritime, France. The castle is built atop rocky outcrop overlooking the double confluence of the Ne, Charente and Antenne.
Fortifications have existed since the Neolithic period. In the 10th century the manor belonged to the Taillefer, counts of Angoulême. In 1179, the castle was taken by Richard, Duke of Aquitaine and given to his illegitimate son Philippe de Falcombridge. Philippe sold the castle to King John of England in 1204. His son King Henry III of England gave the castle to Hugh X de Lusignan, lord of Cognac, husband of Isabelle d'Angouleme. In 1308 Merpins was united to the French crown, however under the Treaty of Brétigny of 1360, the castle returned to English hands.
After a siege lasting six years, led by Marshal Sancerre the castle was taken again in 1387. King Charles VI of France ordered the castles destruction. The castle was still a place of fighting during the wars of religion, occupied by Catholics and Protestants. It was the Duke of Mayenne who dislodged them in 1577.
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.