In 1213, Jallanges belonged to René du Perray, a knight-banneret, and later to Jean Gaudin, a canon of Tours, in 1462. Built in 1465 by Louis XI for his treasurers, it was elevated to a castellany in 1631. The château features brick-and-stone Renaissance architecture, a 17th-century chapel (listed as a historical monument in 1946), a cedar park, a rose garden with 2,000 roses, a French Renaissance garden, and a gallery with trompe-l'œil frescoes dedicated to the Loire and Renaissance gardens.
Louis XI dismantled the original fortress to build a Renaissance-inspired château, reusing its materials. Over the centuries, it passed through numerous owners before being sold as national property in 1798. After neglect in the 20th century, it was purchased in 1984 by the Ferry-Balin family, who restored it and now host events and galas.
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.