HMS Britomart (Lt.Cdr. Arthur James Galvin, DSC, RNR) was accidentally sunk by allied aicraft off Le Havre, France in position 49º41'N, 00º05'E.

Commanding Officers:
Lt.Cdr. Eric Percival Hinton, MVO, RN
28 June 1939 – 28 May 1940
Promoted to Cdr. on 31 December 1939

Lt.Cdr. John Mark Symonds Cox, DSC, RN
28 May 1940 – 15 March 1941+
Bar to DSC awarded on 7 June 1940

Lt. George Henry Cook, RN
15 March 1941 – 29 March 1941

Lt.Cdr. Roger Frederick, RN
29 March 1941 – 10 August 1941

Lt.Cdr. Spencer Shelly Stammwitz, RN
10 August 1941 – 5 January 1944
DSC awarded on 1 December 1943

Lt.Cdr. Arthur James Galvin, DSC, RNR
5 January 1944 - 27 August 1944+