Slighting is the destruction, partial or complete, of a fortification without opposition, to render it unusable as a fortress.
During the Wars of Scottish Independence and the English Civil War, slighting was systematic by one or both sides to deny the use of fortified places to their enemies.
In England during the Middle Ages, adulterine (unauthorised) castles, if captured by the king, would usually be slighted. During the Wars of Scottish Independence, King Robert the Bruce adopted a strategy of slighting Scottish castles to prevent them being occupied by the English. A strategy of slighting castles in the Levant was also adopted by the Mamluks in their wars with the Crusaders.
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 slighted in 1567.
During this war, many castles and fortified houses were slighted by the Parliamentarians to deny them to the Royalists. Most of the destruction was in Wales, the Midlands and Yorkshire e.g. Pontefract Castle. The coastal fortifications were spared by the Commonwealth, to hinder a Royalist or foreign invasion.
- ^ Friar, Stephen (2003). The Sutton Companion to Castles, Sutton Publishing, Stroud, 2003, p. 271. ISBN 978-0-7509-3994-2
- ^ Traquar, Peter Freedom's Sword p. 159
- ^ Haynes, Samuel, ed. (1740). A Collection of State Papers left by William Cecil, 1542–1570. London. p. 354: letter summarising the finalised treaty of Edinburgh.
- ^ Flintham 2011, Fortified Places: Edinburgh cites Cullen 1988, p. 1
- ^ Calendar State Papers Scotland, vol.1 (1898), p.862, 452, 454
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