HMS Diadem (1782)

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For other ships with the same name, see HMS Diadem.
HMS Diadem at capture of Good Hope-Thomas Whitcombe.jpg
Royal Navy EnsignUK
Name: HMS Diadem
Ordered: 5 December 1777
Builder: Chatham Dockyard
Laid down: 2 November 1778
Launched: 19 December 1782
Commissioned: March 1783
Honours and
Fate: Broken up at Plymouth, September 1832
General characteristics [2]
Class and type: Intrepid-class ship of the line
Tons burthen: 1375½ bm
Length: 159 ft 10 in (48.72 m) (gundeck)
Beam: 44 ft 5 in (13.54 m)
Depth of hold: 19 ft (5.8 m)
Propulsion: Sails
Sail plan: Full rigged ship
Complement: 500
  • Gundeck: 26 ×  24-pounder guns
  • Upper gundeck: 26 ×  18-pounder guns
  • QD: 10 ×  4-pounder guns
  • Fc: 2 ×  9-pounder guns

HMS Diadem was a 64-gun third rate ship of the line of the Royal Navy, launched on 19 December 1782 at Chatham.[2] She participated in the Battle of Cape St Vincent in 1797 under Captain George Henry Towry.

In 1798 she was converted to serve as a troopship.[2] On 7 April 1799 she left Portsmouth together with Trompe. They were carry the West York militia to Dublin.[3]

In 1800 under the command of Post Captain Sir Thomas Livingstone she was employed in the expedition to Quiberon and Belle Île under Sir Edward Pellew, subsequently she was employed in the expedition to Cádiz under Admiral Lord Keith.

Because Diadem served in the navy's Egyptian campaign between 8 March 1801 and 2 September, her officers and crew qualified for the clasp "Egypt" to the Naval General Service Medal that the Admiralty authorised in 1850 to all surviving claimants.[Note 1]


Diadem was broken up in September 1832.[2]

Notes and citations[edit]

  1. ^ A first-class share of the prize money awarded in April 1823 was worth £34 2s 4d; a fifth-class share, that of a seaman, was worth 3s 11½d. The amount was small as the total had to be shared between 79 vessels and the entire army contingent.[4]
  1. ^ The London Gazette: no. 21077. pp. 791–792. 15 March 1850.
  2. ^ a b c d Lavery, Ships of the Line, vol. 1, p. 181.
  3. ^ Naval Chronicle, Vol. 1, p.444.
  4. ^ The London Gazette: no. 17915. p. 633. 3 April 1823.


  • Lavery, Brian (2003) The Ship of the Line - Volume 1: The development of the battlefleet 1650-1850. Conway Maritime Press. ISBN 0-85177-252-8.
  • Lyon, David (1993) The Sailing Navy List. Conway Maritime Press. ISBN 0-85177-617-5.
  • Leask, David (2008) Website on the History of Westquarter