Quart castle is a set of buildings arranged within a fortified perimeter, which respects the natural contour of a difficult rocky slope.The donjon (keep) standing on the highest point of the rock, the functional layout of individual buildings, the chapel and the winding passageways, are evidence of an early or Germanic fortified structure, although current architectural evidence point to more recent periods, as do the first narrative sources, which suggest its origins go back to the end of the 12th century (around 1185).
After the death of Henry of Quart in 1377, the castle and fiefdom went to the Savoys, who sold it to Philibert Laschis in 1550, who in turn sold it almost immediately to the Balbis. In the 17th century, the castle belonged first to Count Nicholas Coardo and then to the Perrone of San Martino, who gave it the Municipality of Quart in 1800.
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.