In 1494 Louis Picart, magistrate of Troyes and Tournaisis, friend and chamberlain of King Louis XII with whom he went to Italy, undertook the construction of the Château d'Ételan. It was built on the site of a fortress which has been destroyed under the order of Louis XI. Of the medieval construction, only the cellar, the castle wall and the guard house dating from 1350 remain.
The castle was later converted to a 15th-century flamboyant gothic mansion. The building consists of two dwellings built from layers of bricks and stones and joined together by a magnificent stone staircase dating from the first Renaissance. As integral part of the main building, the Chapel, dedicated to Mary Magdalene, include stained glass windows, wall paintings and statues which characterised the first Norman Renaissance.
History or legend tells us that several kings and famous people have spent time at Ételan like Louis XI, Frans I, Catherine de' Medici, Charles IX with the future kings Henry III and Henry IV and later Voltaire (1723–1724).
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.