Middlesex Regiment
| Dates | Locations | Higher Formation/Remarks |
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| . | 7th Battalion, The Middlesex Regiment (Duke of Cambridge's Own) | . |
| 1947.01.01 | Reconstituted in the T.A. with HQ at Hornsey, and concurrently absorbed duplicate 2/7th Battalion | 47 (London) Infantry Brigade |
| . | A Company at ? | . |
| . | B Company at ? | . |
| . | C Company at ? | . |
| . | D Company at ? | . |
| 1961.05.01 | Amalgamated with 8th Battalion, The Middlesex Regt, and 571 LAA Regt RA (9th Bn The Middlesex Regt (DCO)), to form 5th Battalion, The Middlesex Regiment | . |
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| . | 11th (Middlesex) Battalion, The Parachute Regiment | . |
| 1947.04.01 | Reconstituted in T.A. and converted with HQ at Hounslow, and concurrently amalgamated with duplicate 2/8th Battalion | . |
| 1956.08.01 | Redesignated 8th Battalion, The Middlesex Regiment (Duke of Cambridge's Own) | . |
| 1961.05.01 | Amalgamated with 7th Battalion, The Middlesex Regt, and 571 LAA Regt RA (9th Bn The Middlesex Regt (DCO)), to form 5th Battalion, The Middlesex Regiment | . |
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| . | 5th Battalion, The Middlesex Regiment (Duke of Cambridge's Own) | . |
| 1961.05.01 | Formed by amalgamation of 7th Battalion The Middlesex Regt, 8th Battalion, The Middlesex Regt, and 571 LAA Regiment RA (9th Bn, The Middlesex Regiment, DCO) | . |
| . | A Company at ? | . |
| . | B Company at ? | . |
| . | C Company at ? | . |
| . | D Company at ? | . |
| 1967.04.01 | Disbanded and concurrently reconstituted as two units: | . |
| . | D Company (Middlesex), 5th (Volunteer) Battalion, The Queen's Regiment, in TAVR II at Hornsey | . |
| . | 10th (Territorial) Battalion, The Queen's Regiment (Middlesex) in TAVR III with HQ at Edgware: | . |
| . | A Company at Edgware, successor to 5th Bn The Middlesex Regt | . |
| . | B Company at Acton, successor to 5th Bn The Middlesex Regt | . |
| . | C Company (101st London Engineers) at Hounslow, successor to 101 (London) Engineer Regiment RE (with some personnel from 114 Engineer Regiment RE, and 254 (City of London) Field Regiment RA); absorbed 1968 by B Coy (1st London Engineers), London Yeomanry and Territorials | . |
| 1969.04.01 | TAVR III element reduced to cadre as 10th Battalion, The Queen's Regiment (Middlesex) at Edgware, sponsored by 5th (V) Bn The Queen's Regt, less some personnel to form pln at Edgware in D Coy, 5th Bn | . |
| 1971.04.01 | Reorganised as two companies: | . |
| . | D Company (Middlesex), 5th (Volunteer) Battalion, The Queen's Regiment, at Hornsey | . |
| . | A Company (Middlesex), 6th (Volunteer) Battalion, The Queen's Regiment at Edgware, formed from cadre 10th Battalion and Edgware Pln D Coy 5th Battalion | . |
| 1973.10.08 | Middlesex county company subtitles and affiliations discontinued | . |
| 1975.04.01 | B Company, 6th/7th (Volunteer) Battalion, The Queen's Regiment formed at Hornsey with Pln at Edgware, amalgamation of D Coy 5th Battalion and A Coy 6th Battalion | . |
| 1988.05.16 | B (Albuhera) Company, 8th Battalion, The Queen's Fusiliers formed at Hornsey and Edgware( transferred from 6/7 Queen's); company redesignated for most important battle honour of The Middlesex Regt | . |
| 1993.04.20 | B (Queen's Regiment) Company, The London Regiment formed at Edgware with Pln at Hornsey by redesignation of B Coy, 8th Bn, The Queen's Fusiliers | . |
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