Lord Frederick Cavendish (British Army officer)

Lord Frederick Cavendish
Born	August 1729
Died	21 October 1803 (aged 74) Twickenham Park, Middlesex
Buried at	Derby Cathedral
Allegiance	United Kingdom
Service/branch	British Army
Years of service	1749–1803
Rank	Field Marshal
Commands held	Brigade of chasseurs
Battles/wars	Seven Years' War

Field Marshal Lord Frederick Cavendish (August 1729 – 21 October 1803) was a British Army officer and Whig politician. After serving as an aide-de-camp to the Duke of Cumberland in Germany during the early stages of the Seven Years' War, he served under Charles Spencer, 3rd Duke of Marlborough during in the raid on St Malo and then took part in the raid on Cherbourg. Cavendish commanded the rear-guard during the re-embarkation following the disastrous battle of Saint Cast and was taken prisoner. After his release, Prince Ferdinand of Brunswick gave him command of a brigade of chasseurs which he led to victory at the Battle of Wilhelmsthal in June 1762.

Born the son of William Cavendish, 3rd Duke of Devonshire and Catherine Cavendish (née Hoskins), Cavendish was commissioned as an ensign in the 1st Regiment of Foot Guards on 29 April 1749. He entered politics as Member of Parliament for Derbyshire in 1751. He was promoted to lieutenant in his regiment and captain in the Army on 17 March 1752.