Trakai Island Castle

During the 19th century, castle reconstruction plans were prepared. Its original frescos were preserved and copied by Wincenty Smokowski. The Imperial Archaeological Commission initiated the documentation of the remaining castle in 1888. In 1905, the Imperial Russian authorities decided to partially restore the castle ruins. During World War I, German specialists made several attempts to restore the castle. Between 1935 and 1941, parts of the Ducal Palace walls were strengthened, and the south-eastern castle tower was rebuilt, including sections of its walls.

Trakai Island Castle was built in several phases. During the first phase, in the second half of the 14th century, the castle was constructed on the largest of three lake islands by the order of Grand Duke Kęstutis. The construction of Trakai Island Castle was related to the expansion and strengthening of the Trakai Peninsula Castle. Kęstutis moved his main residence and his treasury to the Island Castle. The castle suffered major devastation during an attack by the Teutonic knights in 1377.

Trakai Island Castle lost its military importance soon after the Battle of Grunwald, when the chief enemy of the Grand Duchy of Lithuania was defeated by the Polish-Lithuanian army. The castle was transformed into a residence and newly decorated from the inside. New frescos were painted on its walls, which have been partially preserved. Foreign emissaries were welcomed in the Ducal Palace. It is known that Jogaila visited the castle thirteen times between 1413 and 1430. In 1414, the Flemish traveler Guillebert de Lannoy described the castle in these words: