High Quality Content by WIKIPEDIA articles! HMS Andromeda was a ship of the Diadem-class of protected cruiser in the Royal Navy. She was built at Pembroke Dockyard and launched on 5 January 1898. In 1913 she was converted to a training ship and renamed Powerful II on 23 September 1913. She was later renamed Impregnable II in November 1919 and finally, HMS Defiance on 20 January 1931, when she became part of the torpedo school. She was sold and arrived at Burgt, in Belgium, for breaking up on 14 August 1956.