Dornoch Cathedral was built in the 13th century, in the reign of King Alexander II (1214–49) and the episcopate of Gilbert de Moravia (later Saint Gilbert of Dornoch) as the cathedral church of the diocese of Caithness.
In 1570 the Cathedral was burnt down during local feuding. Full restoration was not carried out until the early 19th century, by the Countess of Sutherland. Among the 'improvements' carried out, the ruined but still largely intact aisled medieval nave was demolished and a new narrow nave without pillars built on its site. The interior was reordered in the 1920s by Rev. Charles Donald Bentinck, with the removal of Victorian plasterwork to reveal the stonework (although the medieval church would have been plastered throughout). The site of the medieval high altar was raised and converted into a burial area for the Sutherland family, who introduced large marble memorials alien to the original appearance of the building.
The Cathedral's churchyard is adjoined by Dornoch Castle, the somewhat reconstructed remains of the medieval palace of the Bishops of Caithness.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.