The Ducey domain came into the hands of the old Norman Montgommery family in 1521 after the wedding of James Montgommery to Claude de la Boissière, the heiress to the lands of Ducey. The castle was built at the beginning of the 17th century by Gabriel II de Montgommery, one of the sons of Montgommery first who became famous for killing Henry II, king of France, by accident in a tournament on 30th June 1559. He converted to Protestantism and became one of the greatest Protestant Chiefs in the area. Gabriel caused the hatred of Catherine de Medicis and was beheaded on the Place des Grèves on 26 th June 1574. Gabriel II de Montgommery was born in 1565 an inherited the lands of Ducey. Following his father's example, he became the chief of the Protestants in the Avranches area.
Today Château des Montgommery is open to the public.
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.