Allied Warships

HMS Seneschal (P 255)

Submarine of the S class

NavyThe Royal Navy
PennantP 255 
ModFourth Group 
Built byScotts Shipbuilding & Engineering Co. (Greenock, Scotland) 
Ordered19 Oct 1942 
Laid down1 Sep 1943 
Launched23 Apr 1945 
Commissioned6 Sep 1945 
End service 

Broken up at Dunston on Tyne on 23 August 1960.  

Commands listed for HMS Seneschal (P 255)

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and that we only list Commanding Officers for the duration of the Second World War.

1Lt. Andrew George Prideaux, DSC, RN15 May 19453 Dec 1945

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Notable events involving Seneschal include:

4 Oct 1945
HMS Seneschal (Lt. A.G. Prideaux, DSC, RN) completed a period of trials and training in the Clyde area. (1)

14 Jun 1952
HMS Seneschal (Lt. Brisley) was surfacing at exactly 2400 on Friday 13th June when she was overrun by the Danish frigate Thetis. Periscopes and radar mast were damaged. The boat was tipped on its side and subsequently crash dived to the sea bed. (2)


  1. ADM 199/2570
  2. Personal communication

ADM numbers indicate documents at the British National Archives at Kew, London.

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