Under the terms of The concessions of Francis and Mary to the nobility and the people of Scotland and the Treaty of Edinburgh in July 1560, various fortified places were designated for demolition to prevent their use by French and English forces. These included the recent fortifications at Dunbar Castle, Leith and Eyemouth. On the island of Inchkeith a token garrison of 60 French soldiers were allowed to remain for a time. Inchkeith and Dunbar were finally slighted in 1567.
During the English Civil War many castles and fortified houses were slighted by the Parliamentarians to stop them being used by the Royalists. Most of the destruction was in Wales, the Midlands, and Yorkshire e.g. Pontefract Castle. Some southern coastal fortifications were spared by the Commonwealth, as they might have been useful for hindering a Royalist or foreign invasion, however others such as those at Dover, Winchester, and Plymouth were slighted.
Fulton, Michael S. (2018), DeVries, Kelly; France, John; Johstono, Paul; Neiberg, Michael S.; Schneid, Frederick, eds., Artillery in the Era of the Crusades: Siege Warfare and the Development of Trebuchet Technology, History of Warfare, 122, Leiden and Boston: BRILL, ISBN978-90-04-34945-2