The Château de Coucy is a French castle in the commune of Coucy-le-Château-Auffrique, in Picardy, built in the 13th century and renovated by Eugène Viollet-le-Duc in the 19th century. During its heyday, it was famous for the size of its central tower and the pride of its lords.
The castle was constructed in the 1220s by Enguerrand III, Lord of Coucy. The castle proper occupies the tip of a bluff or falaise. It forms an irregular trapezoid of 92 x 35 x 50 x 80 m. At the four corners are cylindrical towers 20 m in diameter (originally 40 m in height). Between two towers on the line of approach was the massive donjon (keep). The donjon was the largest in Europe, measuring 35 meters wide and 55 meters tall. The smaller towers surrounding the court were as big as the donjons being built at that time by the French monarchy. The rest of the bluff is covered by the lower court of the castle, and the small town.
Coucy was occupied in September 1914 by German troops during World War I. It became a military outpost and was frequented by German dignitaries, including Emperor Wilhelm II himself. In March 1917 the retreating German army, on order of General Erich Ludendorff, destroyed the keep and the 4 towers. It is not known whether this act had some military purpose or was merely an act of wanton destruction. The destruction caused so much public outrage that in April 1917 the ruins were declared 'a memorial to barbarity'. War reparations were used to clear the towers and to consolidate the walls but the ruins of the keep were left in place.
One of its lords, Enguerrand VII (1340–1397) is the subject of historian Barbara Tuchman's study of the fourteenth century, A Distant Mirror. It also features extensively in British author Anthony Price's 1982 crime/espionage novel The Old Vengeful.
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.