Château de Liettres was probably built some years before 1479 by Sir Simon de Luxembourg, provost of the church of Saint-Omer. In that year it was burned by the progressing army of Maximilian I of Austria.
In 1542 Liettres Castle was again burned and partly destroyed by the troops of the Duke of Vendome. Shortly thereafter the castle was bought by Jean de Zomberghe after which it remained in the hands of his descendants.
Liettres Castle was built on an artificial plot of dry ground in the marshy valley of the La Laquette stream which also fed its moats. During the course of centuries it underwent several transformations. In 1720 the main building was rebuilt. It consists of several buildings forming a square with strong cylindrical towers. It has walls of 2.5 meters up to 5 meters thick in some towers.
At present the castle is privately owned and inhabited.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.