High Quality Content by WIKIPEDIA articles! HMS Royalist (pennant number 89) was a Dido-class light cruiser of the Bellona subgroup of the Royal Navy. She was a modified Dido design with only four turrets but improved AA armament - aka Dido Group 2. She was built by Scotts Shipbuilding and Engineering Company (Greenock, Scotland) with the keel being laid down on 21 March 1940. She was launched on 30 May 1942, and commissioned 10 September 1943.