Military Wiki
Sir David Mostyn
Born (1928-11-28)November 28, 1928
Died 20 January 2007(2007-01-20) (aged 78)
Allegiance United Kingdom United Kingdom
Service/branch Flag of the British Army.svg British Army
Years of service 1948 - 1989
Rank General
Commands held 2nd Bn Royal Green Jackets
8 Infantry Brigade
British Forces in Berlin
Battles/wars Brunei Revolt
Operation Banner
Awards Knight Commander of the Order of the Bath
Commander of the Order of the British Empire

General Sir Joseph David Frederick Mostyn KCB CBE (28 November 1928 – 20 January 2007) was a British soldier and one-time Adjutant-General to the Forces.

Military career

Educated at Downside School[1] and at the Royal Military Academy, Sandhurst, David Mostyn was commissioned into the Oxfordshire and Buckinghamshire Light Infantry in 1949.[2] He was mentioned in despatches for helping to suppress the Brunei Revolt in 1962.[3] In 1969 he was appointed Commanding Officer of the 2nd Battalion The Royal Green Jackets and was deployed to BAOR and Northern Ireland.[1] In 1972 he went on to command 8 Infantry Brigade.[1] In 1980 he became Commandant of the British Sector in Berlin[1] and in 1983 he was appointed Military Secretary.[1] He went on to be Adjutant General in 1986[4] retiring from the British Army in 1989.[5]

He was made an ADC General to the Queen in 1987.[6]

He was awarded the MBE in 1962,[7] the CBE in 1974[8] and the KCB in 1984.[9]

In retirement he became Chairman of the Lyme Regis Hospital Trust.[1]


In 1952 he married Diana Patricia Sheridan and together they went on to have four sons and two daughters.[1]


Military offices
Preceded by
Sir Robert Richardson
Commandant, British Sector in Berlin
Succeeded by
Bernard Gordon-Lennox
Preceded by
Sir Roland Guy
Military Secretary
Succeeded by
Sir Patrick Palmer
Preceded by
Sir Roland Guy
Adjutant General
Succeeded by
Sir Robert Pascoe

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