Seat of the royal power
During the reign of King Hans (1481–1513) and Queen Christine, Nyborg again became central to the royal power, and in 1525 – under Frederik 1 (1523–33) – the town was designated as a permanent royal town of residence. Christian III (1534–59) remodelled and extended Nyborg Castle and town, rendering it worthy of a new and strengthened royal power after the Reformation in 1536. Nyborg Castle was extended to include a splendid, new great hall, and a large tournament square (the current square) was built in front of the castle as part of an impressive mirror of princes intended to showcase the royal power. Christian III also built the King’s Quay so that the king and his entourage could arrive in style.
The garrison’s armoury
In the 1560s, the royal power moved to North Zealand. The Swedish wars in the 1650s took their toll on Nyborg Castle, and the castle was abandoned as a royal residence. Instead, the castle served as a storage facility and armoury for the military in the town until 1913. During this time, parts of the castle complex were demolished.
Cultural heritage monument
In 1915, the National Museum of Denmark began extensive restoration and regeneration work on Nyborg Castle. The work ceased in 1923 due to lack of funding. The castle was then opened to the public as a museum. In 1918, the castle, the ramparts and a number of other historic buildings in the
town were listed.