With its commanding position alongside the River Moselle, located at the junction of the three main Roman roads and at the end of the Trans-Burgundy highway, Châtel played a strategic role throughout its long history up to 1940-44 during World War II.
From the year 1072 until 1373, it belonged to the Earls of Vaudémont, related to the House of Lorraine. It then became the property of a most prominent Burgundian family, the Lords of Neufchâtel, after the wedding of daughter Alix de Vaudémont with Thiebaut VII of Neufchâtel-Burgundy.
It became the centre of a wide territory which supported the Burgundian cause for years. In 1544, the House of Lorraine gained possession of Châtel, thus ending a legal wrangling between Elisabeth of Neufchâtel's heirs. Then the fortress stood up against the French invasion during the Thirty Years' War and changed hands nine times.
It was finally completely dismantled in 1671 on Louis the XIV's orders.
Built on the edge of a jutting limestone promontory alongside the Mosel River, surrounded by dry ditches 58 m wide, the castle dominated the medieval town and its surrounding walls with its twelve towers and two main gates.
The first structure, built during the 11th and 12th century, showed a single rectangular keep. It was enlarged during the 13th century and further extended in the 15th century to become one of the most important places in the area, with a unique attempt to match the evolving needs of modern artillery.
Two curtain walls, with a total combined length of about one mile (1.4 km), comprised not less than 22 towers. A sophisticated network of storerooms and galleries completed the fortress' defenses and allowed communication between the castle, the town downwards, and the river banks.
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.