HMS Cassandra

HMS Cassandra was a Caledon class light cruiser that was commissioned into the Sixth Light Cruiser Squadron of the Grand Fleet in June 1917, and served with that squadron to the end of the First World War. On 15 August, two months after joining the fleet, the Cassandra (and her sister ship Caradoc) ran aground on Fair Isle, to the north east of Scapa Flow. She had to be towed to Lerwick for repairs, but was back with the squadron by 15 October, when she took part in a massive operation that failed to locate the German fleet as it attacked a Scandinavian convoy. 

In November 1918 the Cassandra was part of a British light cruiser squadron sent into the Baltic under Rear Admiral Alexander-Sinclair, to support the newly independent Baltic States. On 5 December, while travelling between the Baltic capitals, the Cassandra hit one of the thousands of mines that had been laid in the area during the war and sank, fortunately with little loss of life.

Displacement (loaded)


Top Speed


Armour – deck


 - belt


 - conning tower





Five 6in BL M k XII guns
Two 3in Mk I AA guns
Four 3pdr guns
Eight 21in torpedo tubes

Crew complement



25 November 1916


June 1917


5 December 1918

Books on the First World War | Subject Index: First World War

How to cite this article: Rickard, J (14 November 2007), HMS Cassandra ,

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