Lyckå (Lyckeby) Castle was built in 1545-1560 according the order of Kristian III of Denmark. It replaced a small castle manor and was purposed against the rebellious peasants. Battles between Denmark and Sweden were fought in Lyckå in 1507 and 1564. The castle was demolished in 1600 after Lyckå lost its city privileges to Kristianopel. Kristian IV of Denmark ordered to use castle stones to build new fortifications in Kristianopel. Today foundations of castle and two corner towers remain.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.